JEE Main 20179 Apr, Morning shiftMathematicsEasyLimit, Continuity and Differentiability420× since 2002The function f defined by f(x) = x³ −-− 3x² + 5x + 7 , is :AOption A. increasing in R.BOption B. decreasing in R.COption C. decreasing in (0, ∞\infty∞) and increasing in (−-− ∞\infty∞, 0)DOption D. increasing in (0, ∞\infty∞) and decreasing in (−-− ∞\infty∞, 0)CheckSkip · show solution