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 Pre-Calculus and Calculus
 Trigonometric Integration.
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LizD
New Member

United Kingdom
1 Posts

Posted - 03/02/2011 :  20:37:46  Show Profile  Reply with Quote
I have to find
(secx)(1+tanx)dx

I cannot see how I can get the answer from the back of the book (-0.5(1+tanx)^-2
Please help me to understand how they got that answer.
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royhaas
Moderator

USA
3059 Posts

Posted - 03/03/2011 :  12:35:20  Show Profile  Reply with Quote
Let y = 1+tan(x).
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