The direction cosines of the vector 2 \stackrel{\^}{ {\i}}+\stackrel{\^}{ {\j}}-2 \stackrel{\^}{ {\k}} is equal to

Correct Answer is : 23,13,−23

\frac{2}{3}, \frac{1}{3},-\frac{2}{3}

\frac{2}{3}, \frac{1}{3}, \frac{2}{3}

\frac{1}{3}, \frac{2}{3},-\frac{2}{3}

\frac{2}{3}, \frac{2}{3}, \frac{1}{3}

COMEDK Exam 2012 Solved Paper

Question : 128 of 180

Marks: +1, -0

The direction cosines of the vector 2

−2

is equal to

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