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 Sep 18, 2022
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If $\sin 2\theta +\cos 2\theta=1$, the general value of $\theta$ is
Difficulty: Easy
A: 
$n\pi \pm \frac{\pi}{4}, n\frac{\pi}{2}$
B: 
$n\pi \pm \frac{\pi}{4}, n\pi$
C: 
$n\pi -\frac{\pi}{3}, n\pi$
D: 
$n\pi +\frac{\pi}{3}, n\pi$
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NETNUST Entry TestMathematicsSolution of Trigonometric Equations