Ts EamcetApplication Of DerivativesTG EAPCET 2024 (Online) 9th May Evening ShiftMCQ+1 / -02024If $f(x)=k x^3-3 x^2-12 x+8$ is strictly decreasing for all $x \in R$, thenA$k<-\frac{1}{4}$B$k>-\frac{1}{4}$C$k>\frac{1}{4}$D$k<\frac{1}{4}$Check AnswerClear SelectionReveal AnswerShow Explanation