## Thomas' Calculus 13th Edition

$0 \leq \Theta \leq\frac{\pi}{3} , 0\leq r \leq sec \Theta$
describing the given region in polar coordinates of the graph below. $x=1 =>r=sec \Theta$ $y=\sqrt{3}x=>\Theta=\frac{\pi}{3}$ =>$0 \leq \Theta \leq\frac{\pi}{3} , 0\leq r \leq sec \Theta$