Question

Find the area of a parallelogram whose adjacent sides A are given by the vector \(\vec{a}\)  = 3î + ĵ + 4k̂ and \(\vec{b}\)  = î – ĵ + k̂.

Answer 1

The area of a parallelogram with a and b as its adjacent sides is given by

This, the required area is √42 sq.units