Hey all, I've got a rather large assignment due tomorrow and I was wondering if I could get some help with derivatives.

1. y = 2sinxcosx

2. s = cot(2/t)

3. r = sec(1 + 3δ)

4. y = 5 + 2x - 7x^2 - 4x^3

5. y = ln(x^1/2)

6. y = e^(1 + ln + x)

7. y = x/[(2x + 1)^1/2]

8. y = x^3 (2x^2 + 3x - 5)^4

9. y = sin^2 (3x - 2)

10. y = cos(tanx)

11. y = csc^-1 (x^2 + 1)

12. y = sin^-1 (1 - x)

I grasp the basic concept and rules necessary, it's just applying them that I have trouble with. It would be great if I could get some examples to reference when I'm studying for the chapter test.

Thanks.