Prove that (1 + cot^2A) sin^2A = 1

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(1 + cot^2A) sin^2A = 1

prove that (1+cot2A) sin2A=1

(sec2a-1)cot2a=1

cos2a+1/1+cot2a=1

(sec^2a-1)cot^2a=1

tan2a cos2a=1-cos2a

prove that cosec2a+cot2a=cota

cosec theta √1-cos^2 theta =1

tan^2 theta cos^theta=1-cos^2 theta

(1-cos2a)cosec2a=1
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