r(t) = cos^3 t + sin^3 t

How do you find r'(t)? Would it be -3sin^2 t + 3 cos^2 t or something else?

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- Sep 22nd 2009, 06:31 AMtdat1979derivitive
r(t) = cos^3 t + sin^3 t

How do you find r'(t)? Would it be -3sin^2 t + 3 cos^2 t or something else? - Sep 22nd 2009, 07:17 AMProve It