1. The problem statement, all variables and given/known data Find the derivative of (x^2)(sinx)(tanx) 2. Relevant equations f(x+y)(d/dx)=(x)(y)d/dx+(y)(x)d/dx That's for differentiating with 2 terms. With 3, I haven't done it yet. 3. The attempt at a solution x^2(sinx)(sec^2x)+tanx(sinx)2x+x^2(tanx)(cosx) x^2(sinx/1)(1/cos^2x)+sinx/cosx)(sinx/1)(2x)+x^2(sinx/cosx)(cosx/a) sinx/cosx(x^2/cos^2x+2xsinx+x^2cosx) Another attempt was 2xsinxtanx Which one do you guys think is right. It may be neither of them.