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Mathematics
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Rewrite with only sin x and cos x. cos 2x - sin x
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|dw:1453734537661:dw|
@sparrow2 I can't read your answer. What did you write
c0s2x=1-2sinx^2
cos^2x - sin^2x - sin x cos^2x - sin^3x cos^2x + sin^2x + sin x cos^2x - 3 sin x
@sparrow2 what would be the answer out of those 4 choices
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1
the first choice?
yeap
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