If f(x) = Sin(x)Cos(x) is continuous and differentiable in interval (0 – McqOptions

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1.	If f(x) = Sin(x)Cos(x) is continuous and differentiable in interval (0, x) then
A.	1< ( frac{Cos(x)Sin(x)}{x} ) <Sin(2x)
B.	1< ( frac{Cos(x)Sin(x)}{x} ) <Cos(2x)
C.	1< ( frac{Cos(x)Sin(x)}{x} ) <xCos(2x)
D.	1< ( frac{Cos(x)Sin(x)}{x} ) <1+Cos(2x)
Answer» C. 1< ( frac{Cos(x)Sin(x)}{x} ) <xCos(2x)

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