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("cos squared x") - MyTutor. Oct 1, 2018 — We can easily do this using trig identities. 1) Recall the double angle formula: cos(2x) = cos^2(x) - sin^2(x) .How do I integrate cos^2(x)?Oct 1, 2018Integrate cos(2x)Oct 1, 2018How do I integrate cos^2x with respect to x?Oct 4, 2018More results from www.mytutor.co.uk Charles Tyrwhitt Suits Sale, What is the Integral of Cos 2x dx?. The integral of cos^2 x dx is written as ∫ cos2x dx and ∫ cos2dx = x/2 + (sin 2x)/4 + C. Here, C is the integration constant.What is the Integration of Cos 2x dx?How to Find the Integral of Cos 2x? New Balance Camo Sneakers, What is the integral of cos 2x?. Hence the integral of cos 2 x is 1 2 sin 2 x + c , where c is an integration constant. flag. Suggest Corrections.1 answer  ·  Top answer: Step 1: Substitute u in the place 2x in the given integrationLet I=∫cos2x dx ….(1)and 2x=uNow differentiate the equation 2x=u with respect . Charles Tyrwhitt Wtc, Images for integrate cos 2x. integral of cos^2(x). 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