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6sin^2x+5cosx-2=0

6sin^2x+5cosx-2=0 уравнение

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Численное решение:

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Решение

Вы ввели [src]
     2                      
6*sin (x) + 5*cos(x) - 2 = 0
$$6 \sin^{2}{\left(x \right)} + 5 \cos{\left(x \right)} - 2 = 0$$
График
Сумма и произведение корней [src]
сумма
                         /  ___\            /  ___\
-2*pi   2*pi             |\/ 7 |            |\/ 7 |
----- + ---- + -2*I*atanh|-----| + 2*I*atanh|-----|
  3      3               \  7  /            \  7  /
$$\left(- \frac{2 \pi}{3}\right) + \left(\frac{2 \pi}{3}\right) + \left(- 2 i \operatorname{atanh}{\left(\frac{\sqrt{7}}{7} \right)}\right) + \left(2 i \operatorname{atanh}{\left(\frac{\sqrt{7}}{7} \right)}\right)$$
=
0
$$0$$
произведение
                         /  ___\            /  ___\
-2*pi   2*pi             |\/ 7 |            |\/ 7 |
----- * ---- * -2*I*atanh|-----| * 2*I*atanh|-----|
  3      3               \  7  /            \  7  /
$$\left(- \frac{2 \pi}{3}\right) * \left(\frac{2 \pi}{3}\right) * \left(- 2 i \operatorname{atanh}{\left(\frac{\sqrt{7}}{7} \right)}\right) * \left(2 i \operatorname{atanh}{\left(\frac{\sqrt{7}}{7} \right)}\right)$$
=
              /  ___\
      2      2|\/ 7 |
-16*pi *atanh |-----|
              \  7  /
---------------------
          9          
$$- \frac{16 \pi^{2} \operatorname{atanh}^{2}{\left(\frac{\sqrt{7}}{7} \right)}}{9}$$
Быстрый ответ [src]
      -2*pi
x_1 = -----
        3  
$$x_{1} = - \frac{2 \pi}{3}$$
      2*pi
x_2 = ----
       3  
$$x_{2} = \frac{2 \pi}{3}$$
                /  ___\
                |\/ 7 |
x_3 = -2*I*atanh|-----|
                \  7  /
$$x_{3} = - 2 i \operatorname{atanh}{\left(\frac{\sqrt{7}}{7} \right)}$$
               /  ___\
               |\/ 7 |
x_4 = 2*I*atanh|-----|
               \  7  /
$$x_{4} = 2 i \operatorname{atanh}{\left(\frac{\sqrt{7}}{7} \right)}$$
Численный ответ [src]
x1 = -85.870199198121
x2 = -98.4365698124802
x3 = -79.5870138909414
x4 = 39.7935069454707
x5 = 60.7374579694027
x6 = 48.1710873550435
x7 = -27.2271363311115
x8 = 46.0766922526503
x9 = 10.471975511966
x10 = 4.18879020478639
x11 = -617.846555205993
x12 = 67.0206432765823
x13 = -58.6430628670095
x14 = -83.7758040957278
x15 = 64.9262481741891
x16 = -4.18879020478639
x17 = -73.3038285837618
x18 = 83.7758040957278
x19 = -39.7935069454707
x20 = -64.9262481741891
x21 = -35.6047167406843
x22 = -77.4926187885482
x23 = -16.7551608191456
x24 = -29.3215314335047
x25 = -20.943951023932
x26 = -41.8879020478639
x27 = -46.0766922526503
x28 = -96.342174710087
x29 = 391.651884147528
x30 = 16.7551608191456
x31 = 96.342174710087
x32 = 92.1533845053006
x33 = 14.6607657167524
x34 = -92.1533845053006
x35 = -783.303768295055
x36 = 58.6430628670095
x37 = 79.5870138909414
x38 = 8.37758040957278
x39 = 27.2271363311115
x40 = 2.0943951023932
x41 = -8.37758040957278
x42 = 35.6047167406843
x43 = 33.5103216382911
x44 = -2.0943951023932
x45 = 98.4365698124802
x46 = 77.4926187885482
x47 = 54.4542726622231
x48 = -71.2094334813686
x49 = -33.5103216382911
x50 = -48.1710873550435
x51 = -90.0589894029074
x52 = 85.870199198121
x53 = 90.0589894029074
x54 = 52.3598775598299
x55 = -52.3598775598299
x56 = -54.4542726622231
x57 = -10.471975511966
x58 = 41.8879020478639
x58 = 41.8879020478639
График
6sin^2x+5cosx-2=0 уравнение