For a non-zero vector

MATHEMATICS · Single correct · CBSE · Mathematics · Vector Algebra · Vector Algebra

Problem

For a non-zero vector A\mathbf{A}, a unit vector opposite in direction to A\mathbf{A} is required. Which of the following choices is always correct? (a) −A∣A∣-\mathbf A|\mathbf A| (b) A∣A∣\dfrac{\mathbf A}{|\mathbf A|} (c) −A∣A∣-\dfrac{\mathbf A}{|\mathbf A|} (d) −A∣A∣2-\dfrac{\mathbf A}{|\mathbf A|^{2}}

Related theory

Browse the problem library