问题详情
设函数f(x)在[a,b]上连续,在(a,b)内可导,且f'(x)≤0,,证明在(a,b)内F'(x)≤0.
设函数f(x)在[a,b]上连续,在(a,b)内可导,且f'(x)≤0,且有,证明在(a,b)内F'(x)≤0.