1.The function f:R→Rf : \mathbb{R} \to \mathbb{R}f:R→R is defined by f(x)=cos2x+sin4xf(x) = \cos^2 x + \sin^4 xf(x)=cos2x+sin4x for x∈Rx \in \mathbb{R}x∈R, then f(R)f(\mathbb{R})f(R) is equal toa.(34,1](\frac{3}{4}, 1](43,1]b.[34,1)[\frac{3}{4}, 1)[43,1)c.[34,1][\frac{3}{4}, 1][43,1]d.(34,1)(\frac{3}{4}, 1)(43,1)Login to continueOnly logged in users canattempt or see the solution.
