Editor
Editor
 Sep 18, 2022
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Which of the following is the solution set of $\sec x=-2$ where $0\lq x\leq 2\pi$
Difficulty: Easy
A: 
${\frac{3\pi}{2},\frac{3\pi}{4}}$
B: 
${\frac{7\pi}{2},\frac{\pi}{2}}$
C: 
${3\pi,\frac{4\pi}{3}}$
D: 
${\frac{2\pi}{3},\frac{4\pi}{3}}$
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NETNUST Entry TestMathematicsSolution of Trigonometric Equations