Did I differentiate these correctly?

1)

my answer:

2)

my answer:

3)

my answer:

4)

my answer:

5)

my answer:

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- Aug 27th 2009, 05:40 PMyoman360Differentiate the equation
Did I differentiate these correctly?

1)

my answer:

2)

my answer:

3)

my answer:

4)

my answer:

5)

my answer: - Aug 27th 2009, 05:41 PMynj
yes

- Aug 27th 2009, 06:25 PMeXist
I disagree with the 2nd and the 4th problem.

__You have:__

2) ...

my answer:

4) ...

my answer:

__I think it should be:__

2)

4) - Aug 27th 2009, 06:30 PMyoman360