If `sec^-1(cos^2x-2cos x +3)+ cosec^-1(5^(cosec^2y)+1)=pi/2.` Then `sin^2x-cos^2y=`
90 views · Published 13 October 2018 · 3:36 · Indexed 7 October 2026
Channel: Doubtnut · 2018 · Education
To ask Unlimited Maths doubts download Doubtnut from - https://goo.gl/9WZjCW If `sec^-1(cos^2x-2cos x +3)+ cosec^-1(5^(cosec^2y)+1)=pi/2.` Then `sin^2x-cos^2y=`
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