What is the value of (cos x + cos y)/(sin x + sin y)? – McqOptions

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1.	What is the value of (cos x + cos y)/(sin x + sin y)?
A.	tan [(x + y)/2]
B.	tan [(x - y)/2]
C.	cot [(x - y)/2]
D.	cot [(x + y)/2]
Answer» E.

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