Value of Cos (45°+ x) + Cos (45° - x) = – McqOptions

MCQOPTIONS

1.	Value of Cos (45°+ x) + Cos (45° - x) =
A.	√2 cos x
B.	√3 sin x
C.	√3 cot x
D.	√3 cos x
Answer» B. √3 sin x

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