Vectors - Set 5

Choose the correct options for the following questions.

If u=xi+yj, then |u|=

Difficulty: Easy

A:

x^{2}+y^{2}

B:

(x^{2}+y^{2})${2}

C:

x^{2}-y^{2}

D:

\sqrt{x^{2}+y^{2}}

A directed line segment from a point A to a point B is denoted by:

Difficulty: Easy

A:

\overline{AB}

B:

\underline{AB}

C:

\overrightarrow{AB}

D:

\widehat{AB}