please koi iska answer batao jaldi
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So kk,
First adjacent=root of 12^2-4^2=root 128
Cos^2/sin^2 -1/sin^2=(root 128/4)^2-(1/4)^2=your answer
First adjacent=root of 12^2-4^2=root 128
Cos^2/sin^2 -1/sin^2=(root 128/4)^2-(1/4)^2=your answer
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