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Asked by mridul

if acos^3x+3acos.sin^2x=m
asin3x+3acos^2x.sin=n
proof that-(m+n)^2/3+(m-n)^2/3=2a^2/3
11 years ago

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Answered by Steve
"3acos^2x.sin" means what?
11 years ago
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if acos^3x+3acos.sin^2x=m
asin3x+3acos^2x.sin=n
proof that-(m+n)^2/3+(m-n)^2/3=2a^2/3

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