# First Year Math Trigonometric Functions And Their Graphs

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$Q.18 Range of \cot x is equal to(a) R (b) Q (c) Z (d) N$

$Q.10 Range of y=\sin x equals(a) -1<y<1 (b) y \geq 1 or y \leq-1 (c) -\infty<y<\infty (d) -1 \leq y \leq 1$

$Q.21 The period of \sin x is :(a) \frac{\pi}{3} (b) \frac{\pi}{2} (c) \frac{2 \pi}{3} (d) 2 \pi$

$Q.24 The period of \tan x is(a) \frac{\pi}{3} (b) \frac{\pi}{2} (c) \frac{2 \pi}{3} (d) \pi Falsalabad Board 2013; Lahore Board 2016; 2004$

$Q.9 The range of y=\sin x is(a) [-11] (b) [-10] (c) [-22] (d) none of these$

$Q.29 The period of \sin \frac{x}{2} is(a) 2 \pi (b) 4 \pi (c) \pi (d) none$