The range of the function f(x) = cos 2x – sin 2x, x ϵ R is: – McqOptions

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1.	The range of the function f(x) = cos 2x – sin 2x, x ϵ R is:
A.	\([-\sqrt{2}, \sqrt{2}]\)
B.	\([-\sqrt{2}, {2}]\)
C.	[-1,1]
D.	[0,1]
Answer» B. \([-\sqrt{2}, {2}]\)

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