Řeš v \( \C \) rovnici:\( 2 x^{2}+2 x+\frac{5}{2}=0 \)
\( K=\left\{-\frac{1}{2}-2i ;-\frac{1}{2}+2i\right\} \)
\( K=\left\{-1-i ;-1+i\right\} \)
\( K=\left\{-\frac{1}{2}-i ;-\frac{1}{2}+i\right\} \)
\( K=\left\{0-i ;0+i\right\} \)
