Level:
Project ID:
1003086009
Source Problem:
Accepted:
1
Clonable:
1
Easy:
0
The solution set of the equation \( \sin x + \cos x = 0 \) for \( x\in\mathbb{R} \) is:
\( \bigcup\limits_{k\in\mathbb{Z}}\left\{\frac{3\pi}4+2k\pi;\frac{7\pi}4+2k\pi\right\} \)
\( \bigcup\limits_{k\in\mathbb{Z}}\left\{\frac{3\pi}4+2k\pi\right\} \)
\( \mathbb{R} \)
\( \emptyset \)