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" Prove Rat: "-cos^(2)theta+cos^(2)theta...

" Prove Rat: "-cos^(2)theta+cos^(2)theta times cot^(2)theta=cot^(2)theta

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(1 - cos^(2)theta)cot^(2)theta

(1 - cos^(2)theta)cot^(2)theta

Prove that cos^(2)theta("cosec"^(2)theta-cot^(2)theta)=cos^(2)theta .

cot^(2)theta-cos^(2)theta=cot^(2)theta*cos^(2)theta

cot^(4)theta+cot^(2)theta=cos ec^(4)theta-cos ec^(2)theta

Prove cos ec^(2)theta=1+cot^(2)theta

Prove: cos ec^(6)theta=cot^(6)theta+3cot^(2)theta cos ec^(2)theta+1

Prove that (cos theta cos(90^(@)-theta))/(cot(90^(@)-theta))=cos^(2)theta

Prove that cos^2theta+cos^2thetacot^2theta=cot^2theta

Prove that sqrt(cot^(2)theta-cos^(2)theta)=cottheta.costheta