Find an equation of the tangent line to the curve at the point (0, 0).

$\displaystyle y=sin(6 x) + sin^2(6 x) $

I found the derivative to be $\displaystyle 6cos(6x)(1+2sin(6x))$.

When I plug in 0 for x I get y = 6 but I am not sure how that helps me. Galactus explained this to me the other night but I looked over that thread and can't apply what he showed me to this problem.