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In A B C ,(cot (A/2)+cot(B/2))(asin^2(B...

In ` A B C ,(cot (A/2)+cot(B/2))(asin^2(B/2)+bsin^2(A/2))=` (a) `cotC` (b) c`cotC` (c) `cot(C/2)` (d) c`cot(C/2)`

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