Mathematics

Problem

The area of a parallelogram whose adjacent sides are represented by vectors

\vec{a}

and

\vec{b}

is: a)

|\vec{a}\cdot\vec{b}|

\dfrac{1}{2}|\vec{a}\times\vec{b}|

|\vec{a}\times\vec{b}|

|\vec{a}|\,|\vec{b}|