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

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

wio
 2 years ago
Best ResponseYou've already chosen the best response.1This is it right?\[ \int \frac{dx}{x^2+16} \]

wio
 2 years ago
Best ResponseYou've already chosen the best response.1Wanna do a trig sub. You can't do the \(\ln(\;)\) thing unless the denominator is linear.

wio
 2 years ago
Best ResponseYou've already chosen the best response.1\[ x=4\tan\theta,\,dx=4\sec^2\theta \,d\theta \]

wio
 2 years ago
Best ResponseYou've already chosen the best response.1Try this substitution and see what happens.
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