Originally Posted by

**CFem** As always, I have a very loose definition of what these things mean, so going slow would be appreciated.

1) g(x) = sqrt(9 + 4x)

chain rule

2) 9cos(x) + (5/7)cot(x)

straight-forward derivative of two trig functions

3) y = (6 + sin(x)) / (6x + cos(x)) Find the derivative

quotient rule

4) sec(x) Find the second derivative fprime(pi/3)

derivative of the derivative ... 2nd derivative will involve the product rule.

5) y = e^(9e^x))

chain rule again

6) y = sqrt( (1-x) / (1 + x))

chain rule in conjunction with the quotient rule ... unless you know logarithmic differentiation.

I really don't have a clue what I'm doing here.

then get one ... go to the link.