Number of non-differentiable Points of the curve f(x)=min. {|log|x||,|tanx|} in [−π2,π2]
Let f(x)=sin−1(2x√1−x2), then
The number of values of x lying in the interval (-π, π) which satisfy the equation
81+|cosx|+|cos2x|+...............+∞=64 is