初中用平方根立方根公式图表_初中平方根立方根计算题

求平方根与立方根表

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初中用平方根立方根公式图表_初中平方根立方根计算题

初中用平方根立方根公式图表_初中平方根立方根计算题

方根：

√0 = 0（表示根号0等于0，下同）

√1 = 1

√2 = 1.4142135623731

√3 = 1.73205080756888

√4 = 2

√5 = 2.23606797749979

√6 = 2.44948974278318

√7 = 2.64575131106459

√8 = 2.82842712474619

√9 = 3

√10 = 3.16227766016838

√11 = 3.3166247903554

√12 = 3.46410161513775

√13 = 3.60555127546399

√14 = 3.74165738677394

√15 = 3.87298334620742

√16 = 4

√17 = 4.12310562561766

√18 = 4.24264068711928

√19 = 4.35889894354067

√20 = 4.47213595499958

√21 = 4.58257569495584

√22 = 4.69041575982343

√23 = 4.79583152331272

√24 = 4.89897948556636

√25 = 5

√26 = 5.09901951359278

√27 = 5.19615242270663

√28 = 5.2502622128

√29 = 5.3851648071345

√30 = 5.47722557505166

√31 = 5.56776436283002

√32 = 5.65685424949238

√33 = 5.74456264653803

√34 = 5.8309518948453

√35 = 5.607978309962

√36 = 6

√37 = 6.08276253029822

√38 = 6.16441400296898

√39 = 6.2449979983984

√40 = 6.32455532033676

√41 = 6.40312423743285

√42 = 6.48074069840786

√43 = 6.557438524302

√44 = 6.6332495807108

√45 = 6.70820393249937

√46 = 6.78232998312527

√47 = 6.85565460040104

√48 = 6.92820323027551

√49 = 7

√50 = 7.07106781186548

√51 = 7.14142842854285

√52 = 7.21110255092798

√53 = 7.28010988928052

√54 = 7.34846922834953

√55 = 7.41619848709566

√56 = 7.48331477354788

√57 = 7.54983443527075

√58 = 7.615773105863

√59 = 7.68114574786861

√60 = 7.74596669241483

√61 = 7.81024967590665

√62 = 7.87400787401181

√63 = 7.93725393319377

√64 = 8

√65 = 8.06225774829855

√66 = 8.12403840463596

√67 = 8.18535277187245

√68 = 8.24621125123532

√69 = 8.306623862807

√70 = 8.36660026534076

√71 = 8.42614977317636

√72 = 8.48528137423857

√73 = 8.54400374531753

√74 = 8.60232526704263

√75 = 8.66025403784439

√76 = 8.71779788708135

√77 = 8.77496438739212

√78 = 8.83176086632785

√79 = 8.88819441731559

√80 = 8.944271909996

√81 = 9

√82 = 9.05538513813742

√83 = 9.11043357443

√84 = 9.165151389168

√85 = 9.21954445729289

√86 = 9.2736184954957

√87 = 9.32737905308882

√88 = 9.38083151964686

√89 = 9.4339811320566

√90 = 9.48683298050514

√ = 9.53939201416946

√92 = 9.566304662544

√93 = 9.64365076099295

√94 = 9.69535971483266

√95 = 9.74679434480896

√96 = 9.79795897113271

√97 = 9.8488578017961

√98 = 9.89949493661167

√99 = 9.9498743710662

√100 = 10

√101 = 10.0498756211209

√102 = 10.0995049383621

√103 = 10.14885650922

√104 = 10.1980390271856

√105 = 10.2469507659596

√106 = 10.295630140987

√107 = 10.3440804327886

√108 = 10.3923048454133

√109 = 10.44030650806

√110 = 10.4880884817015

√111 = 10.5356537528527

√112 = 10.5830052442584

√113 = 10.6301458127347

√114 = 10.6770782520313

√115 = 10.8052947636

√116 = 10.770329614269

√117 = 10.816653826392

√118 = 10.86278042002

√119 = 10.9087121146357

√120 = 10.9544511501033

√121 = 11

√122 = 11.0453610171873

√123 = 11.0905365064094

√124 = 11.13552872566

√125 = 11.1803398874989

√126 = 11.2249721603218

√127 = 11.2694276695846

√128 = 11.3137084989848

√129 = 11.35781666005

√130 = 11.40175494

√131 = 11.4455231422596

√132 = 11.48252930761

√133 = 11.5325625946708

√134 = 11.5758369027902

√135 = 11.6189500386223

√136 = 11.6619037896906

√137 = 11.70469907196

√138 = 11.7473401244707

√139 = 11.7898261225516

√140 = 11.8321595661992

√141 = 11.8743420870379

√142 = 11.6375287813

√143 = 11.9582607431014

√144 = 12

√145 = 12.0415945787923

√146 = 12.0830459735946

√147 = 12.1243556529821

√148 = 12.1655605964

√149 = 12.2065556157337

√150 = 12.24744871359

√151 = 12.2882057274445

√152 = 12.328828005938

√153 = 12.369316876853

√154 = 12.4096736459909

√155 = 12.4498995979887

√156 = 12.4899959967968

√157 = 12.5299640861417

√158 = 12.5698050899765

√159 = 12.60952021285

√160 = 12.64106406735

√161 = 12.6885775404495

√162 = 12.7279220613579

√163 = 12.7671453348037

√164 = 12.8062484748657

√165 = 12.8452325786651

√166 = 12.8840987267251

√167 = 12.9228479833201

√168 = 12.9614813968157

√169 = 13

√170 = 13.0384048104053

√171 = 13.076696830622

√172 = 13.114877048604

√173 = 13.1529464379659

√174 = 13.1909059582729

√175 = 13.228756555323

√176 = 13.26649614216

√177 = 13.3041346956501

√178 = 13.3416640641263

√179 = 13.3790881602597

√180 = 13.4164078649987

√181 = 13.4536240470737

√182 = 13.490737563232

√183 = 13.5277492584687

√184 = 13.5646599665

√185 = 13.6014705087354

√186 = 13.6381816969859

√187 = 13.6747943311773

√188 = 13.7113092008021

√189 = 13.7477270848675

√190 = 13.7840487520902

√1 = 13.8202749610853

√192 = 13.856406460551

√193 = 13.8924439894498

√194 = 13.9283882771841

√195 = 13.9642400437689

√196 = 14

√197 = 14.0356688476182

√198 = 14.0712472794703

√199 = 14.1067359796659

√200 = 14.142135623731

√201 = 14.1774468787578

√202 = 14.2126704035519

√203 = 14.247806848775

√204 = 14.2828568570857

√205 = 14.3178210632764

√206 = 14.3527000944073

√207 = 14.3874945699382

√208 = 14.422205101856

√209 = 14.456832294801

√210 = 14.43767461894

√211 = 14.5258390463339

√212 = 14.560219778561

√213 = 14.5945195193264

√214 = 14.6287388383278

√215 = 14.6628782986152

√216 = 14.69693845669

√217 = 14.73098626562

√218 = 14.7648230602334

√219 = 14.7986485869487

√220 = 14.83239697413

√221 = 14.8660687473185

√222 = 14.8996644257513

√223 = 14.9331845230681

√224 = 14.9666295470958

√225 = 15

√226 = 15.0332963783729

√227 = 15.06651733194

√228 = 15.0996688705415

√229 = 15.1327459504216

√230 = 15.1657508881031

√231 = 15.1986841535707

√232 = 15.2315462117278

√233 = 15.2643375224737

√234 = 15.2970585407784

√235 = 15.3297097167559

√236 = 15.36224957372

√237 = 15.3948043183407

√238 = 15.4272486205415

√239 = 15.4596248337403

√240 = 15.49333848297

√241 = 15.52417469626

√242 = 15.5563486104

√243 = 15.5884572681199

√244 = 15.6204993518133

√245 = 15.6524758424985

√246 = 15.6843871413581

√247 = 15.7162336455017

√248 = 15.7480157480236

√249 = 15.7797338380595

√ = 15.8113883008419

√251 = 15.8429795177549

√252 = 15.8745078663875

√253 = 15.9059737205869

√254 = 15.9373774505092

√255 = 15.9687194226713

√256 = 16

√257 = 16.0312195418814

√258 = 16.062378404209

√259 = 16.0934769394311

√260 = 16.1245154965971

√261 = 16.1554944214035

√262 = 16.1864140562386

√263 = 16.2172747402269

√264 = 16.2480768092719

√265 = 16.2788205960997

√266 = 16.3095064303001

√267 = 16.3401346383682

√268 = 16.3707055437449

√269 = 16.4012194668567

√270 = 16.431676725155

√271 = 16.4620776331543

√272 = 16.4924224706

√273 = 16.5227116418583

√274 = 16.5529453572468

√275 = 16.583123951777

√276 = 16.6132477258362

√277 = 16.6433169770932

√278 = 16.6733320005331

√279 = 16.7032930884901

√280 = 16.7332005306815

√281 = 16.7630546142402

√282 = 16.7928556237467

√283 = 16.8226038412607

√284 = 16.8522995463527

√285 = 16.8819430161341

√286 = 16.15345252878

√287 = 16.9410743460974

√288 = 16.9705627484771

√289 = 17

√290 = 17.0293863659264

√2 = 17.058722109232

√292 = 17.0880074906351

√293 = 17.1172427686237

√294 = 17.1464281994822

√295 = 17.1755640373177

√296 = 17.2046505340853

√297 = 17.2336879396141

√298 = 17.2626765016321

√299 = 17.26164657906

√300 = 17.3205080756888

√301 = 17.3493515728975

√302 = 17.3781471969828

√303 = 17.4068951855292

√304 = 17.4355957741627

√305 = 17.4642496573

√306 = 17.4928556845359

√307 = 17.5214154679352

√308 = 17.5499287747842

√309 = 17.5783958312469

√310 = 17.606816861659

√311 = 17.6351920885484

√312 = 17.6635217326557

√313 = 17.68060129541

√314 = 17.7200451466693

√315 = 17.7482393492988

√316 = 17.7763888346312

√317 = 17.8044938147649

√318 = 17.832554500127

√319 = 17.86057109948

√320 = 17.8885438199983

√321 = 17.64728671689

√322 = 17.9443584449264

√323 = 17.9722007556114

√324 = 18

√325 = 18.0277563773199

√326 = 18.0554700852678

√327 = 18.0831413200251

√328 = 18.1107702762748

√329 = 18.1383571472171

√330 = 18.1659021245849

√331 = 18.1934053986603

√332 = 18.2208671582886

√333 = 18.2482875908947

√334 = 18.2756668824971

√335 = 18.3030052171

√336 = 18.3303027798234

√337 = 18.3575597506858

√338 = 18.3847763108502

√339 = 18.411952639522

√340 = 18.43908845858

√341 = 18.4661853126194

√342 = 18.4932420089069

√343 = 18.52025774521

√344 = 18.54699094

√345 = 18.5741756210067

√346 = 18.6010752377383

√347 = 18.6279360101972

√348 = 18.6547581061776

√349 = 18.6815416922694

√350 = 18.7082869338697

√351 = 18.7349939951952

√352 = 18.7616630392937

√353 = 18.7882942280559

√354 = 18.8148877222268

√355 = 18.8414436814168

√356 = 18.8679622641132

√357 = 18.89444362762

√358 = 18.9208879284245

√359 = 18.9472953214964

√360 = 18.9736659610103

√361 = 19

√362 = 19.0262975904404

√363 = 19.0525588832577

√364 = 19.0787840283389

√365 = 19.1049731745428

√366 = 19.131126469709

√367 = 19.157244060668

√368 = 19.1833260939

√369 = 19.2093727122985

√370 = 19.2353840616713

√371 = 19.2613602842582

√372 = 19.2873015219859

√373 = 19.3132075828

√374 = 19.3390796058137

√375 = 19.36467310371

√376 = 19.3907194296653

√377 = 19.4164878389476

√378 = 19.4422220952236

√379 = 19.4679223339318

√380 = 19.4935886896179

√381 = 19.5192212959431

√382 = 19.5448202856921

√383 = 19.5703857907809

√384 = 19.59579422654

√385 = 19.6214168703486

√386 = 19.6468827043885

√387 = 19.615572906

√388 = 19.6977156035922

√389 = 19.082923316

√390 = 19.7484176581315

√3 = 19.7737199332852

√392 = 19.7989898732233

√393 = 19.824227601599

√394 = 19.8494332412792

√395 = 19.87460643518

√396 = 19.8997487421324

√397 = 19.9248588451713

√398 = 19.94993734326

√399 = 19.9749843554382

√400 = 20

√401 = 20.0249843945008

√402 = 20.0499376557634

√403 = 20.0748598998847

√404 = 20.0997512422418

√405 = 20.1246117974981

√406 = 20.1494416796099

√407 = 20.174241001832

√408 = 20.1990098767242

√409 = 20.2237484161567

√410 = 20.2484567313166

√411 = 20.2731349327133

√412 = 20.2977831301844

√413 = 20.3224014329016

√414 = 20.3469899493758

√415 = 20.3715487874634

√416 = 20.3960780543711

√417 = 20.4205778566621

√418 = 20.4450483002609

√419 = 20.4694894904587

√420 = 20.49390153192

√421 = 20.5182845286832

√422 = 20.5426385841741

√423 = 20.5669638012031

√424 = 20.5260281974

√425 = 20.6155281280883

√426 = 20.6397674405503

√427 = 20.6639783197718

√428 = 20.6881608655772

√429 = 20.712315177208

√430 = 20.7364413533277

√431 = 20.7605394920267

√432 = 20.7846096908265

√433 = 20.8086520466848

√434 = 20.8326666559997

√435 = 20.8566536146142

√436 = 20.8806130178211

√437 = 20.9045449603669

√438 = 20.9284495364563

√439 = 20.952326839757

√440 = 20.976176963403

√441 = 21

√442 = 21.0237960416286

√443 = 21.0475651798492

√444 = 21.0713075057055

√445 = 21.095023109729

√446 = 21.1187120819429

√447 = 21.142374511866

√448 = 21.1660104885167

√449 = 21.1896201004171

√450 = 21.2132034355964

√451 = 21.2367605815953

√452 = 21.26026254693

√453 = 21.2837966537928

√454 = 21.3072757526625

√455 = 21.3307290077015

√456 = 21.3541565040626

√457 = 21.3775583264319

√458 = 21.4009345590327

√459 = 21.4242852856286

√460 = 21.4476105895272

√461 = 21.47005535839

√462 = 21.4941852602047

√463 = 21.517434735

√464 = 21.540659228538

√465 = 21.5638586528478

√466 = 21.5870331449229

√467 = 21.6101827849743

√468 = 21.6333076527839

√469 = 21.6564078277077

√470 = 21.6794833886788

√471 = 21.7025344142107

√472 = 21.7255609824004

√473 = 21.7485631709315

√474 = 21.7715410570772

√475 = 21.7944947177034

√476 = 21.8174242292714

√477 = 21.8403296678416

√478 = 21.8632111090754

√479 = 21.8860686282393

√480 = 21.9089023002066

√481 = 21.9317121994613

√482 = 21.9544984001002

√483 = 21.9772609758359

√484 = 22

√485 = 22.0227155455452

√486 = 22.0454076850486

√487 = 22.0680764907139

√488 = 22.0907220343745

√489 = 22.113344387496

√490 = 22.1359436211787

√4 = 22.1585198061603

√492 = 22.1810730128188

√493 = 22.2036033111745

√494 = 22.2261107708929

√495 = 22.248595461287

√496 = 22.2710574513201

√497 = 22.293496809608

√498 = 22.31536044214

√499 = 22.3383079036887

√500 = 22.3606797749979

立方根

3√0 = 0

3√1 = 1

3√2 = 1.25992104989487

3√3 = 1.44224957030741

3√4 = 1.5874010519682

3√5 = 1.7099759466767

3√6 = 1.81712059283214

3√7 = 1.293118279

3√8 = 2

3√9 = 2.0800838230519

3√10 = 2.15443469003188

3√11 = 2.22398009056932

3√12 = 2.28942848510666

3√13 = 2.35133468772076

3√14 = 2.41014226417523

3√15 = 2.46621207433047

3√16 = 2.51984209978975

3√17 = 2.57128159065824

3√18 = 2.6207413942089

3√19 = 2.66840164872194

3√20 = 2.714417616594

3√21 = 2.75892417638112

3√22 = 2.80203933065539

3√23 = 2.84386697985157

3√24 = 2.884494061482

3√25 = 2.92401773821287

3√26 = 2.96249606840737

3√27 = 3

3√28 = 3.03658897187566

3√29 = 3.01682568585

3√30 = 3.10595386

3√31 = 3.141380652339

3√32 = 3.1748021039364

3√33 = 3.20753432999583

3√34 = 3.23961180127748

3√35 = 3.27106631018859

3√36 = 3.30192724889463

3√37 = 3.33222185164595

3√38 = 3.36197540679896

3√39 = 3.321144301417

3√40 = 3.41995189335339

3√41 = 3.44821724038273

3√42 = 3.47602664488645

3√43 = 3.50339806038672

3√44 = 3.53034833532606

3√45 = 3.55689330449006

3√46 = 3.58304787101595

3√47 = 3.60882608013869

3√48 = 3.63424118566428

3√49 = 3.65930571002297

3√50 = 3.68403149864039

3√51 = 3.70842976926619

3√52 = 3.73251115681725

3√53 = 3.75628575422107

3√54 = 3.77976314968462

3√55 = 3.80295246076139

3√56 = 3.82586236554478

3√57 = 3.8485011312768

3√58 = 3.8708766406278

3√59 = 3.89299641587326

3√60 = 3.486764116886

3√61 = 3.93649718310217

3√62 = 3.957860968041

3√63 = 3.97905720789639

3√64 = 4

3√65 = 4.02072575858906

3√66 = 4.04124002062219

3√67 = 4.06154810044568

3√68 = 4.081655101735

3√69 = 4.10156592970235

3√70 = 4.12128529980856

3√71 = 4.14081774942285

3√72 = 4.16016764610381

3√73 = 4.179339638123

3√74 = 4.19833645380841

3√75 = 4.21716332650875

3√76 = 4.23582358425489

3√77 = 4.25432086511501

3√78 = 4.27265868169792

3√79 = 4.29084042702621

3√80 = 4.30886938006377

3√81 = 4.32674871092222

3√82 = 4.34448148576861

3√83 = 4.36207067145484

3√84 = 4.379513988789

3√85 = 4.39682967215818

3√86 = 4.4140049624421

3√87 = 4.43104762169363

3√88 = 4.44796018113863

3√89 = 4.46474509558454

3√90 = 4.48140474655716

3√ = 4.49794144527541

3√92 = 4.514357435474

3√93 = 4.53065489608349

3√94 = 4.54683594377634

3√95 = 4.56290263538697

3√96 = 4.57885697021333

3√97 = 4.59470089220704

3√98 = 4.61043629205845

3√99 = 4.626065008274

3√100 = 4.64158883361278

3√101 = 4.65700950780383

3√102 = 4.62872835526

3√103 = 4.6875481476536

3√104 = 4.70266937544151

3√105 = 4.71769398031653

3√106 = 4.732623416337

3√107 = 4.7474593985234

3√108 = 4.7622031559046

3√109 = 4.77685618103502

3√110 = 4.741985706278

3√111 = 4.80589553370533

3√112 = 4.82028452835046

3√113 = 4.83458812711164

3√114 = 4.84880758583988

3√115 = 4.86294413109428

3√116 = 4.87699896107331

3√117 = 4.89097324650875

3√118 = 4.90486813152402

3√119 = 4.868473445873

3√120 = 4.93242414866094

3√121 = 4.9460874432487

3√122 = 4.9596756638423

3√123 = 4.97318983326859

3√124 = 4.98663095223865

3√125 = 5

3√126 = 5.01329793496458

3√127 = 5.02652569531348

3√128 = 5.03968419957949

3√129 = 5.05277434720856

3√130 = 5.065797010089

3√131 = 5.0787530781327

3√132 = 5.064336965949

3√133 = 5.10446872200146

3√134 = 5.117229946205

3√135 = 5.12992784003009

3√136 = 5.14256318131647

3√137 = 5.15513673547577

3√138 = 5.16764925236362

3√139 = 5.18010146738029

3√140 = 5.1924941018511

3√141 = 5.2048278633942

3√142 = 5.21710344627617

3√143 = 5.22932153175598

3√144 = 5.24148278841779

3√145 = 5.2535878724929

3√146 = 5.26563742817144

3√147 = 5.27763208790408

3√148 = 5.28957247269421

3√149 = 5.30145923809

3√150 = 5.313292845305

3√151 = 5.37402161499

3√152 = 5.33680329744389

3√153 = 5.34848124123936

3√154 = 5.36010841096536

3√155 = 5.37168535494483

3√156 = 5.38321261208728

3√157 = 5.39469071210959

3√158 = 5.40612017575022

3√159 = 5.41750151497718

3√160 = 5.42883523318981

3√161 = 5.4401218254148

3√162 = 5.45136177849642

3√163 = 5.4625555712814

3√164 = 5.47370367479843

3√165 = 5.48480655243262

3√166 = 5.49586466009501

3√167 = 5.50687844638735

3√168 = 5.51784835276224

3√169 = 5.52877481367887

3√170 = 5.53965825675446

3√171 = 5.5504902155

3√172 = 5.56129776652124

3√173 = 5.57205465554262

3√174 = 5.58277017165842

3√175 = 5.59344471040698

3√176 = 5.60407866131077

3√177 = 5.61467240800149

3√178 = 5.62522632834186

3√179 = 5.63574079454424

3√180 = 5.64621617328617

3√181 = 5.656652825822

3√182 = 5.66705110809706

3√183 = 5.67741137084543

3√184 = 5.68773395970313

3√185 = 5.69801921530506

3√186 = 5.70826747338486

3√187 = 5.71847906487132

3√188 = 5.72865431598244

3√189 = 5.73879354831717

3√190 = 5.74889707894483

3√1 = 5.7589652204924

3√192 = 5.76899828122963

3√193 = 5.77899656515213

3√194 = 5.7889603720624

3√195 = 5.798889997649

3√196 = 5.8087857335637

3√197 = 5.81864786749696

3√198 = 5.82847668325146

3√199 = 5.838272460814

3√200 = 5.84803547642573

3√2=1.25992104989487

平方根立方根口诀表

平方根口诀表：负数方根不能行，零取方根仍为零。正数方根有两个，符号相反值相同。2作根指可省略，其它务必要写明。负数只有奇次根，算术方根零或正。

平方根，是指自乘结果等于的实数，表示为±（√x），读作正负根号下x或x的平方根。其中的非负数的平方根称为算术平方根。正整数的平方根通常是无理数。定义：在分数指数中，依定义，可知方运算对乘法满足分配律，即：注意若n是非负实数且时，因为必定是正数，但有正负两个解。应等于±；即(见)。

扩展资料：

平方根口诀

1、11-19的平方：原数加尾数，尾平方；逢10进位。

2、41-49的平方：尾加15，10减尾再平方，占2位。

3、51-59的平方：尾加二十五，尾平方占2位。

4、-99的平方：尾数乘2加80，10减尾数再平方，占2位。

初中平方根的计算公式总结

平方根又叫二次方根，其中属于非负数的平方根称之为算术平方根。下面整理了平方根的计算公式，供参考。

平方根计算公式

根号内的数可以化成相同或相同则可以相加减，不同不能相加减。

如果根号里面的数相同就可以相加减，如果根号里面的数不相同就不可以相加减，能够化简到根号里面的数相同就可以相加减了。

举例如下：

（1）2√2+3√2=5√2（根号里面的数都是2，可以相加）

（2）2√3+3√2（根号里面的数一个是3，一个是2，不同不能相加）

（3）√5+√20=√5+2√5=3√5（根号内的数虽然不同，但是可以化成相同，可以相加）

（4）3√2-2√2=√2

（5）√20-√5=2√5-√5=√5

根号的乘除法：

√ab=√a·√b﹙a≥0b≥0﹚，如：√8=√4·√2=2√2

√a／b=√a÷√b

巧记平方根口诀

负数方根不能行，零取方根仍为零。

正数方根有两个，符号相反值相同。

2 作根指可省略，其它务必要写明。

负数只有奇次根，算术方根零或正。

注：方根均指平方根。

初二数学的平方根和立方根的对照表格

从1开始到25

1， 1.414， 1.732， 2， 2.236， 2.449， 2.646， 2.828， 3， 3.162， 3.317， 3.464， 3.606， 3.742， 3.873， 4， 4.123， 4.243， 4.359， 4.472， 4.583， 4.690， 4.796， 4.899， 5

立方根表没有，自己算一下把。。。。。。

去新华书店 有个小本数学手册就有

中学数学用表里全有！

在初二的书本上

立方根公式

所有立方根公式

立方公式如下：

扩展资料：

1、性质

在实数范围内，任何实数的立方根只有一个

在实数范围内，负数不能方，但可以开立方。

0的立方根是0

立方和开立方运算，互为逆运算。

在复数范围内，任何非0的数都有且3个立方根，它们均匀分布在以原点为圆心，算术根为半径的圆周上，三个立方根对应的点构成正三角形。

在复数范围内，负数既可以方，又可以开立方。

2、大小比较

具有大小意义的数字大小比较中：

做这两个数的立方，立方数大者大

作，两数相减，若大于0，则被减数大；若小于0，则减数大；若等于0，则一样大；

比较被开方数，立方根大者大

参考资料：百度百科-立方根

立方根公式是？？？

立方根公式是：

立方和或立方公式:a^3+b^3=?;a^3-b^3=

3=

3=一共有三解,一个实数解,两个虚数解

如1有1,-1/2+3/2i,-1/2-3/2i

i为虚数单位

如果一个数的立方等于a，那么这个数叫a的立方根，也称为三次方根。也就是说，如果x3=a，那么x叫做a的立方根。

注意：在平方根中的根指数2可省略不写，但立方根中的根指数3不能省略不写。

拓展资料：

性质

在实数范围内，任何实数的立方根只有一个

在实数范围内，负数不能方，但可以开立方。

0的立方根是0

立方和开立方运算，互为逆运算。

在复数范围内，任何非0的数都有且3个立方根，它们均匀分布在以原点为圆心，算术根为半径的圆周上，三个立方根对应的点构成正三角形。

在复数范围内，负数既可以方，又可以开立方。

立方根公式是什么？

公式是3√a3=a。如果一个数的立方等于a，那么这个数叫做a的立方根或三次方根。如果x=a，那么x叫做a的立方根。正数的立方根是正数，负数的立方根是负数0。

1到20的立方：

13=1，23=8，33=27，43=64，53=125，63=216，73=343，83=512，93=729，103=1000，113=...

193=6859，203=8000。

立方根：

性质：一般地，如果一个数x的立方等于a，即x=a，那么这个数x就叫做a的立方根，如2是8的立方根等，记作x=√a，读作“三次方根号a”。

特点：立方根与平方根的区别如下。

立方根里0只有一个立方根就是其本身。

正数只有一个立方根。

负数也只有一个立方根。

立方根公式立方根公式是什么

1、如果一个数的立方等于a，那么这个数叫做a的立方根或三次方根；如果x3=a，那么x叫做a的立方根。正数的立方根是正数，负数的立方根是负数，0的立方根是0；求一个数的立方根的运算，叫做开立方。

2、1到20的立方：13=1，23=8，33=27，43=64，53=125，63=216，73=343，83=512，93=729，103=1000，113=1331，123=1728，133=2197，143=2744，153=3375，163=4096，173=43，183=5832，193=6859，203=8000。

立方根公式有哪些?

立方根公式有√a=a。如果一个数的立方等于a，那么这个数叫做a的立方根或三次方根。如果x=a，那么x叫做a的立方根。正数的立方根是正数，负数的立方根是负数0。

1到20的立方：

13=1，23=8，33=27，43=64，53=125，63=216，73=343，83=512，93=729，103=1000，113=。

193=6859，203=8000。

立方根：

性质：一般地，如果一个数x的立方等于a，即x=a，那么这个数x就叫做a的立方根，如2是8的立方根等，记作x=√a，读作“三次方根号a”。

特点：立方根与平方根的区别如下。

立方根里0只有一个立方根就是其本身。

正数只有一个立方根。

负数也只有一个立方根。

立方根计算公式是什么？

立方根计算公式是x3=a。

如果一个数的立方等于a，那么这个数叫做a的立方根或三次方根；如果x=a，那么x叫做a的立方根。正数的立方根是正数，负数的立方根是负数，0的立方根是0；求一个数的立方根的运算，叫做开立方。

立方根区别联系：

⑴根指数不同:平方根的根指数为2，且可以省略不写;立方根的根指数为3，且不能省略不写。

⑵结果不同:平方根的结果除0之外，有两个互为相反的结果;复数范围内，立方根的结果有3个，3个立方根均匀分布在以原点为圆心，算术根为半径的圆周上，三个立方根对应的点构成正三角形。

二者都是与乘方运算互为逆运算。