1. ## derivatives...5 problems

I have a couple functions that I had to take the derivatives of... and I'm not sure if I got the answers right.

Here are the problems:

Find dy/dx.

1. y=(1+cos^2*7x)^3
2. y=(1+cos2x)^2
3. y=x/sqrt(1+2x)
4. y=sin^2(3x-2)
5. y=sqrt(tan5x)

Thanks~

2. Dear kdl00,

I think you could check these derivations easily with, webMathematica Explorations: Step-by-Step Derivatives

3. Hello kdl00
Originally Posted by kdl00
I have a couple functions that I had to take the derivatives of... and I'm not sure if I got the answers right.

Here are the problems:

Find dy/dx.

1. y=(1+cos^2*7x)^3
2. y=(1+cos2x)^2
3. y=x/sqrt(1+2x)
4. y=sin^2(3x-2)
5. y=sqrt(tan5x)

Thanks~
You say that you're not sure whether you got the answers right. Why not show us what you have done, and we'll check them for you?