(1)/(1-cos A)+(1)/(1+cos A)=2cosec^(2)A...

(1)/(1-cos A)+(1)/(1+cos A)=2cosec^(2)A

(1)/(1-cos A)+(1)/(1+cos A)=2cosec^(2)A
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cos(1/2cos^(- 1)1/8)=
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If quad Tan^(-1)(1)+cos^(-1)(-(1)/(2))+sin^(-1)(-(1)/(2)) and y=cos[(1...
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(sin alpha)/(1+cos alpha)+(1+cos alpha)/(sin alpha)=2cosec alpha
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(sin theta)/((1+cos theta))+((1+cos theta))/(sin theta)=2cosec theta
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sqrt((1-cos A)/(1+cos A))+sqrt((1+cos A)/(1-cos A))=2cosec A
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Find the principal value of cot^(-1)(-sqrt3)+2cosec^(-1)(-2)+cos^(-1)(...
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(1)/(1-cosA)+(1)/(1+cosA)=2cosec ^(2)A.
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सिद्ध कीजिए कि sqrt((1+cos theta)/(1-cos theta))+sqrt((1-cos theta)/(1...
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