trigonometry

Question: If ${{\sin }^{2}}\theta =\frac{1}{4},$then the most general value of $\theta $is

1) $2n\pi \pm {{(-1)}^{n}}\frac{\pi }{6}$

2) $\frac{n\pi }{2}\pm {{(-1)}^{n}}\frac{\pi }{6}$

3) $n\pi \pm \frac{\pi }{6}$

4) $2n\pi \pm \frac{\pi }{6}$

Solution:

Explanation: No Explanation

Solution of trigonometric equations

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