d⼀dx∫(x,0)sin^100(x-t)dt(详细过程,谢谢)

2025-01-20 07:24:09
推荐回答(2个)
回答1:


如图所示

回答2:

let
u= x-t
du =-dt
t=0, u=x
t=x, u=0
f(x)
=∫(0->x) [sin(x-t)]^100 dt
=∫(x->0) (sinu)^100 (-du)
=∫(0->x) (sinu)^100 du
f'(x) = (sinx)^100