Господин Экзамен

Другие калькуляторы


2*sin(x)^(2)+5*cos(x)+1=0

2*sin(x)^(2)+5*cos(x)+1=0 уравнение

С верным решением ты станешь самым любимым в группе❤️😊

v

Численное решение:

Искать численное решение на промежутке [, ]

Решение

Вы ввели [src]
     2                      
2*sin (x) + 5*cos(x) + 1 = 0
$$2 \sin^{2}{\left(x \right)} + 5 \cos{\left(x \right)} + 1 = 0$$
График
Сумма и произведение корней [src]
сумма
                         /  ___\            /  ___\
-2*pi   2*pi             |\/ 2 |            |\/ 2 |
----- + ---- + -2*I*atanh|-----| + 2*I*atanh|-----|
  3      3               \  2  /            \  2  /
$$\left(- \frac{2 \pi}{3}\right) + \left(\frac{2 \pi}{3}\right) + \left(- 2 i \operatorname{atanh}{\left(\frac{\sqrt{2}}{2} \right)}\right) + \left(2 i \operatorname{atanh}{\left(\frac{\sqrt{2}}{2} \right)}\right)$$
=
0
$$0$$
произведение
                         /  ___\            /  ___\
-2*pi   2*pi             |\/ 2 |            |\/ 2 |
----- * ---- * -2*I*atanh|-----| * 2*I*atanh|-----|
  3      3               \  2  /            \  2  /
$$\left(- \frac{2 \pi}{3}\right) * \left(\frac{2 \pi}{3}\right) * \left(- 2 i \operatorname{atanh}{\left(\frac{\sqrt{2}}{2} \right)}\right) * \left(2 i \operatorname{atanh}{\left(\frac{\sqrt{2}}{2} \right)}\right)$$
=
              /  ___\
      2      2|\/ 2 |
-16*pi *atanh |-----|
              \  2  /
---------------------
          9          
$$- \frac{16 \pi^{2} \operatorname{atanh}^{2}{\left(\frac{\sqrt{2}}{2} \right)}}{9}$$
Быстрый ответ [src]
      -2*pi
x_1 = -----
        3  
$$x_{1} = - \frac{2 \pi}{3}$$
      2*pi
x_2 = ----
       3  
$$x_{2} = \frac{2 \pi}{3}$$
                /  ___\
                |\/ 2 |
x_3 = -2*I*atanh|-----|
                \  2  /
$$x_{3} = - 2 i \operatorname{atanh}{\left(\frac{\sqrt{2}}{2} \right)}$$
               /  ___\
               |\/ 2 |
x_4 = 2*I*atanh|-----|
               \  2  /
$$x_{4} = 2 i \operatorname{atanh}{\left(\frac{\sqrt{2}}{2} \right)}$$
Численный ответ [src]
x1 = 23.0383461263252
x2 = -27.2271363311115
x3 = 60.7374579694027
x4 = -8.37758040957278
x5 = 79.5870138909414
x6 = 46.0766922526503
x7 = -33.5103216382911
x8 = 41.8879020478639
x9 = 98.4365698124802
x10 = 73.3038285837618
x11 = -96.342174710087
x12 = -52.3598775598299
x13 = -39.7935069454707
x14 = -23.0383461263252
x15 = -14.6607657167524
x16 = -46.0766922526503
x17 = 52.3598775598299
x18 = -92.1533845053006
x19 = 67.0206432765823
x20 = -54.4542726622231
x21 = -67.0206432765823
x22 = 2.0943951023932
x23 = 83.7758040957278
x24 = 92.1533845053006
x25 = -64.9262481741891
x26 = 20.943951023932
x27 = -79.5870138909414
x28 = 54.4542726622231
x29 = -2.0943951023932
x30 = -98.4365698124802
x31 = -104.71975511966
x32 = -48.1710873550435
x33 = -159.174027781883
x34 = 27.2271363311115
x35 = -90.0589894029074
x36 = -73.3038285837618
x37 = 96.342174710087
x38 = -586.430628670095
x39 = 29.3215314335047
x40 = -58.6430628670095
x41 = 8.37758040957278
x42 = 35.6047167406843
x43 = 64.9262481741891
x44 = 4.18879020478639
x45 = 10.471975511966
x46 = -10.471975511966
x47 = -16.7551608191456
x48 = -77.4926187885482
x49 = -20.943951023932
x50 = -178.023583703422
x51 = 48.1710873550435
x52 = 16.7551608191456
x53 = -29.3215314335047
x54 = -60.7374579694027
x55 = 39.7935069454707
x56 = -35.6047167406843
x57 = 14.6607657167524
x58 = 71.2094334813686
x59 = -83.7758040957278
x60 = -4.18879020478639
x61 = 58.6430628670095
x62 = 90.0589894029074
x63 = 33.5103216382911
x64 = -41.8879020478639
x65 = -85.870199198121
x66 = 85.870199198121
x67 = -71.2094334813686
x68 = 77.4926187885482
x68 = 77.4926187885482
График
2*sin(x)^(2)+5*cos(x)+1=0 уравнение