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[" 15."(cos^(2)theta)/(1-tan theta)+(sin...

[" 15."(cos^(2)theta)/(1-tan theta)+(sin^(3)theta)/(sin theta-cos theta)=1+sin theta cos theta],[" 16."tan^(2)4" con "]

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Prove : (cos^2 theta)/(1-tan theta) + (sin^3 theta)/(sin theta-cos theta) = 1 + sin theta cos theta

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Prove: (cos^2theta)/(1-tan theta) + (sin^3 theta)/(sin theta - cos theta ) = 1 + sin theta cos theta

Prove that (cos^(2) theta)/(1-tan theta)+(sin^(3) theta)/(sin theta - cos theta) =1 + sin theta cos theta .

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(sin^(2) theta)/(1-cos theta)-(cos^(2) theta)/(1-sin theta)=cos theta-sin theta

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