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deferentiate tan^2x

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posted on May, 4 2008 @ 01:21 AM
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Hey there.

Could anyone please supply step by step instructions on how to deferentiate this problem (tan^2x).

Where..

tan^2x = 2*tanx*sec^2x


thanks




posted on May, 5 2008 @ 01:35 AM
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Don't worry yall.



1. tanx*tanx

2. u = tanx du/dx = sec^2x
v = tanx dv/dx = sec^2x

3. Use product rule where:

d(uv)/dx = u*(dv/dx) + v*(du/dx)
= tanx*sec^2x + tanx*sec^2x
= 2*tanx*sec^2x



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