We learnt something called the "chain rule" last class.

I'm doing my best to understand it...

These are the hardest questions, and I don't know how to start or finish..

Can anybody show me how to find the derivatives of these:

1) (sqrt(5x))/(2x^2-3)

2) f(x) = sqrt(2x(sqrt(x+3)) (Square root of the square root)

Thanks!