Question

求y=10^(xtan2x)的导数

Answer 1

y′=【10^(xtan2x)】′
=ln10*10^(xtan2x)[(xtan2x)]′
=ln10*10^(xtan2x)[1*tan2x+x*(tan2x)′]
=ln10*10^(xtan2x)[1*tan2x+x*2/(cos2x)^2]