sin 2x - cos 2x sin 2x cos x - cos x sin 2x can someone told me step by step how to simplify these two expressions?
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Originally Posted by alessandromangione sin 2x - cos 2x sin 2x cos x - cos x sin 2x can someone told me step by step how to simplify these two expressions? It helps a lot to know that sin(2x)= 2 sin(x) cos(x) and that . You can also use and .
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