Question 132365
2sinxcos^3x+2sin^2xcosx = sin2x
Factor the left side to get:
2sinxcosx(cos^2x + sin^2x) = sin2x
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But cos^2x + sin^2x = 1, So
(2sinxcosx)*1 = sin2x
But 2sinxcosx = sin2x, So
sin2x = sin2x
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Cheers,
Stan H.