/a a*cos(t)
|- - -------- for And(t > -oo, t < oo, t != 0)
$$\begin{cases} - \frac{a \cos{\left(t \right)}}{t} + \frac{a}{t} & \text{for}\: t > -\infty \wedge t < \infty \wedge t \neq 0 \\0 & \text{otherwise} \end{cases}$$
/a a*cos(t)
|- - -------- for And(t > -oo, t < oo, t != 0)
$$\begin{cases} - \frac{a \cos{\left(t \right)}}{t} + \frac{a}{t} & \text{for}\: t > -\infty \wedge t < \infty \wedge t \neq 0 \\0 & \text{otherwise} \end{cases}$$
Ответ (Неопределённый)
[src] / // 0 for t = 0\
| || |
| a*sin(w*t) dw = C + a*|<-cos(w*t) |
| ||---------- otherwise|
/ \\ t /
$$\int a \sin{\left(t w \right)}\, dw = C + a \left(\begin{cases} 0 & \text{for}\: t = 0 \\- \frac{\cos{\left(t w \right)}}{t} & \text{otherwise} \end{cases}\right)$$