Can you please help me verify the identity: (sin(5x)/sin(x)) - (cos(5x)/cos(x)) = 4cos2x?

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Can you please help me verify the identity: (sin(5x)/sin(x)) - (cos(5x)/cos(x)) = 4cos2x? Find answers now! No. 1 Questions & Answers Place.
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Can you please help me verify the identity: (sin(5x)/sin(x)) - (cos(5x)/cos(x)) = 4cos2x? More questions about Science & Mathematics. Ask Monti Moreno.
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