Level:
Project ID:
2010014901
Source Problem:
Accepted:
0
Clonable:
1
Easy:
0
The solution set of the inequality \( \sin x \geq \frac{\sqrt{2}}2 \) for \( x\in\mathbb{R} \) is:
\( \bigcup\limits_{k\in\mathbb{Z}}\left[\frac{\pi}4+2k\pi;\ \frac{3\pi}4+2k\pi\right] \)
\( \bigcup\limits_{k\in\mathbb{Z}}\left[ \frac{\pi}4+k\pi;\ \frac{3\pi}4+k\pi\right] \)
\( \bigcup\limits_{k\in\mathbb{Z}}\left[ -\frac{\pi}4+2k\pi;\ \frac{\pi}4+2k\pi\right] \)
\( \bigcup\limits_{k\in\mathbb{Z}}\left[ -\frac{\pi}4+k\pi;\ \frac{\pi}4+k\pi\right] \)