微积分计算,然后怎么做,在线等

2025-03-11 07:27:54
推荐回答(2个)
回答1:

lim(1-x)tan(πx/2) = lim(1-x)/cot(πx/2) (0/0)
= lim-1/{-(π/2)[csc(πx/2)]^2} = 2/π

回答2:

答案是1吗?