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13 August, 08:24

Express 8 sin^2x - 10sinxcosx in the form a+b sin (2x+c).

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  1. 13 August, 10:58
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    8 sin2x - 10sinxcosx = 8*2sinXcosX-10sinXcosX = 16sinXcosX - 10sinXcosX = 6sinXcosX=3sin2x
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