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OpenStudy (anonymous):
integrate 1/sqrt(x^2 +16) dx
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OpenStudy (adamaero):
Trig substitution?
OpenStudy (anonymous):
\[\int\limits \frac{ 1 }{ \sqrt{x^{2} + 16}} dx \]
OpenStudy (anonymous):
yeah, i let x = 4tan solved for dx = sec^2
OpenStudy (anonymous):
im just not getting the right answer.
OpenStudy (adamaero):
|dw:1413249603882:dw|
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