1-csc (x) sin^3 (x)=cos^2

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Guest Dec 10, 2014

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I assume we have this

1-csc (x) sin^3 (x)=cos^2x and we'd like to show that it's an identity.....working on the ledt, we have

1 - (i1/ sin x)sin^3x =

1 - sin^2 x =

cos^2x which is equal to the right side

CPhill Dec 10, 2014

CPhill · Answer 1 · 2014-12-10T03:03:10

I assume we have this

1-csc (x) sin^3 (x)=cos^2x and we'd like to show that it's an identity.....working on the ledt, we have

1 - (i1/ sin x)sin^3x =

1 - sin^2 x =

cos^2x which is equal to the right side