1
/ / 0 for pi*n = 0
| |
| sin(pi*n*x) dx = < 1 cos(pi*n)
| |---- - --------- otherwise
/ \pi*n pi*n
0
$${{1}\over{n\,\pi}}-{{\cos \left(n\,\pi\right)}\over{n\,\pi}}$$
Ответ (Неопределённый)
[src] / // 0 for n = 0\
| || |
| sin(pi*n*x) dx = C + |<-cos(pi*n*x) |
| ||------------- otherwise|
/ \\ pi*n /
$$-{{\cos \left(n\,\pi\,x\right)}\over{n\,\pi}}$$