cosx的等价无穷小
问题描述:
cosx的等价无穷小
答
x→π/2时cosx→0(无穷小)
∴cosx的等价无穷小为(π/2)-x
(x→π/2)
cosx的等价无穷小
x→π/2时cosx→0(无穷小)
∴cosx的等价无穷小为(π/2)-x
(x→π/2)