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cos^3x уравнение

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Вы ввели [src]

   3       
cos (x) = 0

$$\cos^{3}{\left(x \right)} = 0$$

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Быстрый ответ [src]

      pi
x_1 = --
      2

$$x_{1} = \frac{\pi}{2}$$

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      3*pi
x_2 = ----
       2

$$x_{2} = \frac{3 \pi}{2}$$

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Сумма и произведение корней [src]

сумма

pi   3*pi
-- + ----
2     2

$$\left(\frac{\pi}{2}\right) + \left(\frac{3 \pi}{2}\right)$$

2*pi

$$2 \pi$$

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произведение

pi   3*pi
-- * ----
2     2

$$\left(\frac{\pi}{2}\right) * \left(\frac{3 \pi}{2}\right)$$

    2
3*pi 
-----
  4

$$\frac{3 \pi^{2}}{4}$$

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Численный ответ [src]

x1 = 7.85402475701276

x2 = -95.8185603030962

x3 = 36.128317789764

x4 = -20.4203505482106

x5 = 58.1194603256925

x6 = 92.6770059000324

x7 = -61.2611644481175

x8 = -73.827410994311

x9 = 45.553194340988

x10 = 26.7034436275456

x11 = -51.8362625267018

x12 = 92.6768935770301

x13 = -23.5619897288019

x14 = 73.8274768053124

x15 = 70.6858302611407

x16 = 48.6946439323886

x17 = -61.2611560468397

x18 = -29.8451152214988

x19 = 14.1371748405436

x20 = 23.5620444336803

x21 = 45.5531567451367

x22 = 4.71229368085888

x23 = 26.7034598912501

x24 = -36.1282768063468

x25 = 95.818627417042

x26 = -58.1194276545353

x27 = -17.2788562472482

x28 = -14.1371260033657

x29 = 29.8451754771722

x30 = 89.5354940921686

x31 = -42.4114638604687

x32 = 1.5708945053691

x33 = -7.85396939058216

x34 = 1.57080273224359

x35 = -89.5354410428862

x36 = -39.2700061565569

x37 = -64.4025554047934

x38 = 64.4026122770508

x39 = -83.2523004207065

x40 = 67.5443333859623

x41 = 67.5443442271897

x42 = 20.4203112367381

x43 = -67.5442906223714

x44 = -92.6770895717702

x45 = 51.8363261592826

x46 = 42.4114617473496

x47 = -42.411405413931

x48 = 70.6857435758276

x49 = 23.5619763533234

x50 = -1.57083925518957

x51 = -20.4202554438585

x52 = 86.3937628262857

x53 = -80.1105785507599

x54 = 4.71228651848371

x55 = 80.1106035284868

x56 = 48.6945935926021

x57 = -83.2523059178598

x58 = -45.5531401844306

x59 = -86.3937054164085

x59 = -86.3937054164085

График