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