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Project ID:
2010012002
Source Problem:
Accepted:
0
Clonable:
1
Easy:
0
Riešte rovnici \( \cos^2x = \sqrt2 \cos x \) s neznámou \( x\in\mathbb{R} \).
\( x\in\bigcup\limits_{k\in\mathbb{Z}} \left\{ \frac{\pi}2+k\pi \right\} \)
\( x\in\bigcup\limits_{k\in\mathbb{Z}} \left\{ \frac{\pi}4+k\pi ;\frac{\pi}2+k\pi\right\} \)
\( x\in\bigcup\limits_{k\in\mathbb{Z}} \left\{ \frac{\pi}4+k\pi \right\} \)
\( x \in \emptyset \)