Rieš v \( \R \) rovnicu:
\( \normalsize\left(a-1\right)\left(3a-1\right)=0 \)
\( \large K=\left\{{\frac12;1}\right\} \)
\( \large K=\left\{{\frac13;2}\right\} \)
\( \large K=\left\{{\frac13;1}\right\} \)
\( \large K=\left\{{\frac23;1}\right\} \)