Vypočítej v \( \mathbb{R} \):
\( \sqrt{2 x-1}+\sqrt{4-x} \geq 0 \)
\( K=\left\langle 0 ; 4\right\rangle \)
\( K=\left\langle 1 ; 4\right\rangle \)
\( K=\left\langle\frac{1}{2} ; 4\right\rangle \)
\( K=\left\langle\frac{1}{2} ; 3\right\rangle \)