GATE (GA) Textile 2018 Question Paper Solution | GATE/2018/GA/03

Question 03 (General Aptitude)

For 0 ≤ 𝑥 ≤ 2𝜋, sin 𝑥 and cos 𝑥 are both decreasing functions in the interval _______.

(A)	$\left ( 0,\frac{\pi}{2} \right )$
(B)	$\left ( \frac{\pi}{2},0 \right )$
(C)	$\left ( \pi, \frac{3\pi}{2}\right )$
(D)	$\left ( \frac{3\pi}{2},2\pi \right )$

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F=Sin x and Cos x

By putting value of x between o to $\frac{\pi}{2}$

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