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appleduardo
 3 years ago
whats the integral for dx/x^2 + 16 ?
appleduardo
 3 years ago
whats the integral for dx/x^2 + 16 ?

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appleduardo
 3 years ago
Best ResponseYou've already chosen the best response.0i thinks its \[\frac{ \ln (x ^{2} +16)}{ 2 }+C\]

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0This is it right?\[ \int \frac{dx}{x^2+16} \]

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0Wanna do a trig sub. You can't do the \(\ln(\;)\) thing unless the denominator is linear.

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0\[ x=4\tan\theta,\,dx=4\sec^2\theta \,d\theta \]

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0Try this substitution and see what happens.
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