Consider the vector .

MATHEMATICS · Multi-part · CBSE · Mathematics · Vector Algebra · Vector Algebra

Problem

Consider the vector a=3i−4j\mathbf{a}=3\mathbf{i}-4\mathbf{j}. (i) Find ∣a∣|\mathbf{a}|. (ii) Hence, verify that u^=35 i−45 j\hat{\mathbf{u}}=\dfrac{3}{5}\,\mathbf{i}-\dfrac{4}{5}\,\mathbf{j} is a unit vector.

Related theory

Browse the problem library