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[" In AABC,prove that "],[ sec((B+C)/(2)...

[" In AABC,prove that "],[ sec((B+C)/(2))=csc(A)/(2)]

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In DeltaABC , prove that "cosec"(A)/(2)+"cosec"(B)/(2)+"cosec"(C)/(2) ge 6 .

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