Господин Экзамен

Другие калькуляторы


4^cos(x)=2

4^cos(x)=2 уравнение

С верным решением ты станешь самым любимым в группе❤️😊

v

Численное решение:

Искать численное решение на промежутке [, ]

Решение

Вы ввели [src]
 cos(x)    
4       = 2
$$4^{\cos{\left(x \right)}} = 2$$
График
Сумма и произведение корней [src]
сумма
pi   5*pi       /    /1    pi*I \\              /    /1    pi*I \\       /    /1    pi*I \\     /    /1    pi*I \\
-- + ---- + - re|acos|- + ------|| + 2*pi - I*im|acos|- + ------|| + I*im|acos|- + ------|| + re|acos|- + ------||
3     3         \    \2   log(2)//              \    \2   log(2)//       \    \2   log(2)//     \    \2   log(2)//
$$\left(\frac{\pi}{3}\right) + \left(\frac{5 \pi}{3}\right) + \left(- \operatorname{re}{\left(\operatorname{acos}{\left(\frac{1}{2} + \frac{i \pi}{\log{\left(2 \right)}} \right)}\right)} + 2 \pi - i \operatorname{im}{\left(\operatorname{acos}{\left(\frac{1}{2} + \frac{i \pi}{\log{\left(2 \right)}} \right)}\right)}\right) + \left(\operatorname{re}{\left(\operatorname{acos}{\left(\frac{1}{2} + \frac{i \pi}{\log{\left(2 \right)}} \right)}\right)} + i \operatorname{im}{\left(\operatorname{acos}{\left(\frac{1}{2} + \frac{i \pi}{\log{\left(2 \right)}} \right)}\right)}\right)$$
=
4*pi
$$4 \pi$$
произведение
pi   5*pi       /    /1    pi*I \\              /    /1    pi*I \\       /    /1    pi*I \\     /    /1    pi*I \\
-- * ---- * - re|acos|- + ------|| + 2*pi - I*im|acos|- + ------|| * I*im|acos|- + ------|| + re|acos|- + ------||
3     3         \    \2   log(2)//              \    \2   log(2)//       \    \2   log(2)//     \    \2   log(2)//
$$\left(\frac{\pi}{3}\right) * \left(\frac{5 \pi}{3}\right) * \left(- \operatorname{re}{\left(\operatorname{acos}{\left(\frac{1}{2} + \frac{i \pi}{\log{\left(2 \right)}} \right)}\right)} + 2 \pi - i \operatorname{im}{\left(\operatorname{acos}{\left(\frac{1}{2} + \frac{i \pi}{\log{\left(2 \right)}} \right)}\right)}\right) * \left(\operatorname{re}{\left(\operatorname{acos}{\left(\frac{1}{2} + \frac{i \pi}{\log{\left(2 \right)}} \right)}\right)} + i \operatorname{im}{\left(\operatorname{acos}{\left(\frac{1}{2} + \frac{i \pi}{\log{\left(2 \right)}} \right)}\right)}\right)$$
=
     2 /    /    /2*pi*I + log(2)\\     /    /2*pi*I + log(2)\\\ /            /    /2*pi*I + log(2)\\     /    /2*pi*I + log(2)\\\
-5*pi *|I*im|acos|---------------|| + re|acos|---------------|||*|-2*pi + I*im|acos|---------------|| + re|acos|---------------|||
       \    \    \    2*log(2)   //     \    \    2*log(2)   /// \            \    \    2*log(2)   //     \    \    2*log(2)   ///
----------------------------------------------------------------------------------------------------------------------------------
                                                                9                                                                 
$$- \frac{5 \pi^{2} \left(\operatorname{re}{\left(\operatorname{acos}{\left(\frac{\log{\left(2 \right)} + 2 i \pi}{2 \log{\left(2 \right)}} \right)}\right)} + i \operatorname{im}{\left(\operatorname{acos}{\left(\frac{\log{\left(2 \right)} + 2 i \pi}{2 \log{\left(2 \right)}} \right)}\right)}\right) \left(- 2 \pi + \operatorname{re}{\left(\operatorname{acos}{\left(\frac{\log{\left(2 \right)} + 2 i \pi}{2 \log{\left(2 \right)}} \right)}\right)} + i \operatorname{im}{\left(\operatorname{acos}{\left(\frac{\log{\left(2 \right)} + 2 i \pi}{2 \log{\left(2 \right)}} \right)}\right)}\right)}{9}$$
Быстрый ответ [src]
      pi
x_1 = --
      3 
$$x_{1} = \frac{\pi}{3}$$
      5*pi
x_2 = ----
       3  
$$x_{2} = \frac{5 \pi}{3}$$
          /    /1    pi*I \\              /    /1    pi*I \\
x_3 = - re|acos|- + ------|| + 2*pi - I*im|acos|- + ------||
          \    \2   log(2)//              \    \2   log(2)//
$$x_{3} = - \operatorname{re}{\left(\operatorname{acos}{\left(\frac{1}{2} + \frac{i \pi}{\log{\left(2 \right)}} \right)}\right)} + 2 \pi - i \operatorname{im}{\left(\operatorname{acos}{\left(\frac{1}{2} + \frac{i \pi}{\log{\left(2 \right)}} \right)}\right)}$$
          /    /1    pi*I \\     /    /1    pi*I \\
x_4 = I*im|acos|- + ------|| + re|acos|- + ------||
          \    \2   log(2)//     \    \2   log(2)//
$$x_{4} = \operatorname{re}{\left(\operatorname{acos}{\left(\frac{1}{2} + \frac{i \pi}{\log{\left(2 \right)}} \right)}\right)} + i \operatorname{im}{\left(\operatorname{acos}{\left(\frac{1}{2} + \frac{i \pi}{\log{\left(2 \right)}} \right)}\right)}$$
Численный ответ [src]
x1 = 93.2005820564972
x2 = 68.0678408277789
x3 = -82.7286065445312
x4 = 57.5958653158129
x5 = 271.224165759919
x6 = -70.162235930172
x7 = -32.4631240870945
x8 = 45.0294947014537
x9 = 132.994089001968
x10 = 26.1799387799149
x11 = 55.5014702134197
x12 = -42.9350995990605
x13 = 70.162235930172
x14 = -51.3126800086333
x15 = 82.7286065445312
x16 = -26.1799387799149
x17 = -38.7463093942741
x18 = 80.634211442138
x19 = 89.0117918517108
x20 = 76.4454212373516
x21 = 11.5191730631626
x22 = -55.5014702134197
x23 = -5.23598775598299
x24 = 38.7463093942741
x25 = -13.6135681655558
x26 = 30.3687289847013
x27 = -114.144533080429
x28 = 49.2182849062401
x29 = -74.3510261349584
x30 = 32.4631240870945
x31 = 7.33038285837618
x32 = 42.9350995990605
x33 = 5.23598775598299
x34 = -7.33038285837618
x35 = -76.4454212373516
x36 = -93.2005820564972
x37 = 19.8967534727354
x38 = -101.57816246607
x39 = -143.466064513934
x40 = 86.9173967493176
x41 = 1.0471975511966
x42 = -11.5191730631626
x43 = -99.4837673636768
x44 = -24.0855436775217
x45 = 36.6519142918809
x46 = -57.5958653158129
x47 = -1.0471975511966
x48 = -63.8790506229925
x49 = 63.8790506229925
x50 = -17.8023583703422
x51 = -68.0678408277789
x52 = -95.2949771588904
x53 = -86.9173967493176
x54 = -61.7846555205993
x55 = -80.634211442138
x56 = 99.4837673636768
x57 = 95.2949771588904
x58 = 24.0855436775217
x59 = -45.0294947014537
x60 = -36.6519142918809
x61 = -89.0117918517108
x62 = 74.3510261349584
x63 = 17.8023583703422
x64 = 61.7846555205993
x65 = -30.3687289847013
x66 = 51.3126800086333
x67 = -49.2182849062401
x68 = 13.6135681655558
x69 = -19.8967534727354
x69 = -19.8967534727354
График
4^cos(x)=2 уравнение