( sin (2 x)= ) ? Circle the correct answer. A. ( cos (2 x+pi) ) B. ( cos ^{2}(x) sin ^{2}(x) ) C. ( frac{1+sin ^{2}(x)}{2} ) D. ( 2 sin (x) cos (x) ) E. None of the above.
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Step 1: We know that the double angle formula for sine is \( \sin(2x) = 2\sin(x)\cos(x) \). Show more…
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