How do you differentiate f(x)=3x+xtanx?

1 Answer
Feb 2, 2017

f'(x)=3+xsec^2(x)+tan(x)

Explanation:

d/dx(f(x))=d/dx(3x+xtan(x))
f'(x)=d/dx(3x)+d/dx(xtan(x))
f'(x)=3+x d/dx(tan(x))+d/dx(x)tan(x)
f'(x)=3+xsec^2(x)+tan(x)