Question

derivative of y=3x^2sinxtanx

Answer 1

\[3(2xsinxtanx+x^2cosxtanx+x^2sinxsec^2x)\]
I get this using y=a'bc+ab'c+abc'

Answer 2

your answer is correct but it can be simplified a little

Answer 3

e.g.:\[\cos(x)\tan(x)=\cos(x)\times \frac{\sin(x)}{\cos(x)}=\sin(x)\]