Задание

Найдите скалярное произведение векторов \(\overrightarrow{t}\) и \(\overrightarrow{k}\), если:

\(\overrightarrow{t}\{8;1\}\), \(\overrightarrow{k}\{2;5\}\)

\(\overrightarrow{t}\{-6;7\}\), \(\overrightarrow{k}\{-4;-3\}\)

\(\overrightarrow{t}\left\{\sqrt3;-\dfrac 2 {49}\right\}\), \(\overrightarrow{k}\{\sqrt{12};98\}\)

\(\overrightarrow{t}\{13;5\}\), \(\overrightarrow{k}\{-10;26\}\)