Hello!

I'm having some problems with Calculus. I can't even figure out how to get started, let alone do the problem :S

1)Find derivative of the function:

2)Calculate area enclosed by y^2 = 2x+6 and y = x -1

3) Calculate the integral$\displaystyle

\int \frac {\sin2x}{1+cos^2x} dx

$

Thanks guys