If : `x*cos A *cos B= sin (A-B), ` `y*cos B *cos C= sin (B-C), ` `z*co – InterviewSolution

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1.	If : `xcos A cos B= sin (A-B), ` `ycos B cos C= sin (B-C), ` `zcos C cos A= sin (C-A), ` then : x+y+z= (a)-1 (b)0 (c)sin(A+B+C) (d) cos(A-B-C)A. -1B. 0C. sin(A + B + C)D. cos (A - B - C)
Answer» Correct Answer - B

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