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Uhol medzi vektormi
Urči veľkosti uhlov, ktoré zvierajú nasledujúce vektory:
\( \normalsize\left(-1;7\right){\normalsize\:a}\normalsize\left(8,10\right) \)
\( \large\textrm{\large cos}(\varphi)=\frac{62}{\sqrt{60}\ .\ \sqrt{164}} \)
\( \normalsize\varphi\doteq50^{\circ}{10}^{\prime} \)
\( \large\textrm{\large cos}(\varphi)=\frac{60}{\sqrt{50}\ .\ \sqrt{164}} \)
\( \normalsize\varphi\doteq45^{\circ}{30}^{\prime} \)
\( \large\textrm{\large cos}(\varphi)=\frac{62}{\sqrt{50}\ .\ \sqrt{164}} \)
\( \normalsize\varphi\doteq46^{\circ}{47}^{\prime} \)
\( \large\textrm{\large cos}(\varphi)=\frac{62}{\sqrt{50}\ .\ \sqrt{150}} \)
\( \normalsize\varphi\doteq48^{\circ}{20}^{\prime} \)