3*sin(x)=cos(x)+a уравнение
С верным решением ты станешь самым любимым в группе❤️😊
Решение
Сумма и произведение корней
[src]
/ _________\ / _________\
| / 2 | | / 2 |
|-3 + \/ 10 - a | |3 + \/ 10 - a |
-2*atan|-----------------| + 2*atan|----------------|
\ -1 + a / \ -1 + a /
$$\left(- 2 \operatorname{atan}{\left(\frac{\sqrt{- a^{2} + 10} - 3}{a - 1} \right)}\right) + \left(2 \operatorname{atan}{\left(\frac{\sqrt{- a^{2} + 10} + 3}{a - 1} \right)}\right)$$
/ _________\ / _________\
| / 2 | | / 2 |
|-3 + \/ 10 - a | |3 + \/ 10 - a |
- 2*atan|-----------------| + 2*atan|----------------|
\ -1 + a / \ -1 + a /
$$- 2 \operatorname{atan}{\left(\frac{\sqrt{- a^{2} + 10} - 3}{a - 1} \right)} + 2 \operatorname{atan}{\left(\frac{\sqrt{- a^{2} + 10} + 3}{a - 1} \right)}$$
/ _________\ / _________\
| / 2 | | / 2 |
|-3 + \/ 10 - a | |3 + \/ 10 - a |
-2*atan|-----------------| * 2*atan|----------------|
\ -1 + a / \ -1 + a /
$$\left(- 2 \operatorname{atan}{\left(\frac{\sqrt{- a^{2} + 10} - 3}{a - 1} \right)}\right) * \left(2 \operatorname{atan}{\left(\frac{\sqrt{- a^{2} + 10} + 3}{a - 1} \right)}\right)$$
/ _________\ / _________\
| / 2 | | / 2 |
|-3 + \/ 10 - a | |3 + \/ 10 - a |
-4*atan|-----------------|*atan|----------------|
\ -1 + a / \ -1 + a /
$$- 4 \operatorname{atan}{\left(\frac{\sqrt{- a^{2} + 10} - 3}{a - 1} \right)} \operatorname{atan}{\left(\frac{\sqrt{- a^{2} + 10} + 3}{a - 1} \right)}$$
/ _________\
| / 2 |
|-3 + \/ 10 - a |
x_1 = -2*atan|-----------------|
\ -1 + a /
$$x_{1} = - 2 \operatorname{atan}{\left(\frac{\sqrt{- a^{2} + 10} - 3}{a - 1} \right)}$$
/ _________\
| / 2 |
|3 + \/ 10 - a |
x_2 = 2*atan|----------------|
\ -1 + a /
$$x_{2} = 2 \operatorname{atan}{\left(\frac{\sqrt{- a^{2} + 10} + 3}{a - 1} \right)}$$