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RadEn
 2 years ago
Best ResponseYou've already chosen the best response.1first, change tan^3 x = tan^2x tanx

supercrazy92
 2 years ago
Best ResponseYou've already chosen the best response.0I tried this \[\int\limits_{}^{}(\tan^2x. tanx. secx) dx \] \[\int\limits_{}^{}(\sec^2x1) (tanx. secx) dx \]

slaaibak
 2 years ago
Best ResponseYou've already chosen the best response.0Yeah, continue with that and set u = sec x du = sec x tan x

RadEn
 2 years ago
Best ResponseYou've already chosen the best response.1ok, then multiply of them by use distributive property = int (sec^2x secxtanx  secxtanx) dx = int (sec^2x secxtanx) dx  int (secxtanx) dx

RadEn
 2 years ago
Best ResponseYou've already chosen the best response.1case I : int (sec^2x secxtanx) dx use int by subs, like slaaibak said : u=secx case II : int (secxtanx) = secx (i sure u have remembered) :p

supercrazy92
 2 years ago
Best ResponseYou've already chosen the best response.0I think I do :) thanks @RadEn and @slaaibak
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