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" 3.cosec" "(2)...

" 3.cosec" "(2)

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In the triangle ABC, If "cosec"^(2) A + " cosec "^(2)B + " cosec "^(2) C=4 , show that the triangle is equilateral.

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

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

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