Find the area of the triangle whose adjacent sides are determined by the vectors and .

MATHEMATICS · Subjective · A Level · Mathematics · Vectors · Vectors

Problem

Find the area of the triangle whose adjacent sides are determined by the vectors

\mathbf{a} = -2\hat{i} - 5\hat{k}

and

\mathbf{b} = \hat{i} - 2\hat{j} - \hat{k}