CUET Preparation Today
The function f(x) = cos x is strictly decreasing in: |
$\left(\frac{\pi}{2}, \frac{3 \pi}{2}\right)$ $(0,2 \pi)$ $(\pi, 2 \pi)$ $(0, \pi)$ |
$(0, \pi)$ |
The correct answer is Option (4) → $(0, \pi)$ $f(x) = \cos x$ [Given]
$∴y=\cos x$ is strictly decreasing between $(0, \pi)$. |
