Question 1045691
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Please help me simplify this 1-sin^2 2x
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{{{1-sin^2(2x)}}} = {{{sin^2(2x) + cos^2(2x) - sin^2(2x)}}} = {{{cos^2(2x)}}}.


Done.


I simply replaced 1 by {{{sin^2(2x) + cos^2(2x)}}}.