If x = sin 70° ⋅ sin 50° and y = cos 60° ⋅ cos 80°, then what – McqOptions

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1.	If x = sin 70° ⋅ sin 50° and y = cos 60° ⋅ cos 80°, then what is xy equal to?
A.	1/16
B.	1/8
C.	1/4
D.	1/2
Answer» B. 1/8

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