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~

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- January 28th 2010, 12:56 AMkdl00derivatives...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~ - January 28th 2010, 12:59 AMSudharaka
Dear kdl00,

I think you could check these derivations easily with, webMathematica Explorations: Step-by-Step Derivatives - January 28th 2010, 06:09 AMGrandad