Monotonicity_24-02-2021_S1_JEE-Main - Competishun – Live JEE & NEET Courses and Exam Prep

JEE MAIN 2021

24-02-21 S1

Question

The function
$f(x)=\frac{4 x^3-3 x^2}{6}-2 \sin x+(2 x-1) \cos x:$

Select the correct option:

increases in $\left[\frac{1}{2}, \infty\right)$

increases in $\left(-\infty, \frac{1}{2}\right]$

decreases in $\left[\frac{1}{2}, \infty\right)$

decreases in $\left(-\infty, \frac{1}{2}\right]$

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution

Question Tags

JEE Main

Mathematics

Hard

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