MathematicsMedium179×since 2002Q4167Let ,f:[−1,2]→Rf:[-1,2] \rightarrow \mathbf{R}f:[−1,2]→R be given by f(x)=2x2+x+[x2]−[x]f(x)=2 x^2+x+\left[x^2\right]-[x]f(x)=2x2+x+[x2]−[x], where [t][t][t] denotes the greatest integer less than or equal to ttt. The number of points, where fff is not continuous, is :A5B6C4D3Check answerSkip