ln根号(1+t^2)的导数是多少?

2025-06-27 02:00:36
推荐回答(2个)
回答1:

[ln√(1+t²)]'
=1/√(1+t²)*[√(1+t²)]'
=1/√(1+t²)*1/2√(1+t²)*(1+t²)'
=1/[2(1+t²)]*2t
=t/(1+t²)

回答2:

t/(1+t^2)