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Uhol medzi mimobežkami
Urči uhol medzi dvomi zadanými mimobežkami:
\( \begin{aligned} p: x & =9+2 t \\ y & =2+t \\ z & =3\end{aligned} \) \( \begin{aligned} q: x & =2+s \\ y & =4-2 s \\ z & =2-s\end{aligned} \)
\( 30^{\circ} \)
\( 90^{\circ} \)
\( 60^{\circ} \)
\( 45^{\circ} \)