Mathematics · 2022
JEE Main · 30 June 2022, Shift 1 · Q9
Let f(x)=4 x^3-11 x^2+8 x-5, x ∈ R. Then f:
Let $\displaystyle f(x)=4 x^3-11 x^2+8 x-5, x \in \mathbf{R}$. Then $\displaystyle f:$
Official answer
(4)
is decreasing in $\displaystyle \left(\frac{1}{2}, \frac{4}{3}\right)$
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JEE Main 2022 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.