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anonymous
 5 years ago
solve integral (1tan^2(x))
anonymous
 5 years ago
solve integral (1tan^2(x))

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0\[\int\limits_{?}^{?}1\tan ^{2}x=\int\limits_{?}^{?}1(\sec ^{2}x1)\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.01tan^2(x) is a nice Identity... do you know what it is ?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0\[=\int\limits_{?}^{?}2\sec ^{2}x\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0just to let you know uzma, if you eliminate the _{}{} part after "int" the limits of the integral will go away like this \[\int\limits\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0oh thanks, i dint try it :)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Lao, to remember the integrals of trig, you need to know the derivatives of them very well

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0for this one, d/dx(tan(x)) = sec^2(x) was the one tat uzma referred to

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0another one you will see a lot is things like \[\int\limits \csc(x)\cot(x) dx\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0if you try to do usubstitution or integration by parts, it will be a tough one, but if you remember d/dx csc(x) = csc(x)cot(x) then we know that the integral that I showed you will have an ans csc(x) + C
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