设f(x)={ax,(x≥0),sin(x/2),(x
问题描述:
设f(x)={ax,(x≥0),sin(x/2),(x
答
f'(x)={a,x>0,
{(1/2)cos(x/2),x
设f(x)={ax,(x≥0),sin(x/2),(x
f'(x)={a,x>0,
{(1/2)cos(x/2),x