Show that the vector is a unit vector.

MATHEMATICS · Subjective · CBSE · Mathematics · Vector Algebra · Vector Algebra

Problem

Show that the vector 3i−4j+12k32+(−4)2+122\displaystyle \frac{3\mathbf{i}-4\mathbf{j}+12\mathbf{k}}{\sqrt{3^{2}+(-4)^{2}+12^{2}}} is a unit vector.

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