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QID: 50. what is the value of Sin(B-C) cos(A-D) + sin(A-B) cos(C-D) + sin(C-A) cos(B-D) ?
Sin(B-C) cos(A-D) + sin(A-B) cos(C-D) + sin(C-A) cos(B-D) का क्या मान है?

A) 3/2 B) -1 C) 1 D) 0

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