What is the derivative of tan(sin x)tan(sinx)?
1 Answer
Jan 2, 2016
Explanation:
Use the chain rule.
According to the chain rule,
d/dx(tan(u))=sec^(u)*(du)/dxddx(tan(u))=secu⋅dudx
Therefore,
d/dx(tan(sinx))=sec^2(sinx)*d/dx(sinx)ddx(tan(sinx))=sec2(sinx)⋅ddx(sinx)
=>sec^2(sinx)cosx⇒sec2(sinx)cosx