(cos x+sin x)^2-(cos x-sin x)^2=4 sin x cos x
Saluranedukasion 2024-06-25T19:32:00
(cos x+sin x)^2-(cos x-sin x)^2=4 sin x cos x
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(cos x+sin x)^2-(cos x-sin x)^2=4 sin x cos x