If vector and vector

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

Problem

If vector a⃗=3i^+2j^−k^\vec{a} = 3\hat{i} + 2\hat{j} - \hat{k} and vector b⃗=i^−j^+k^\vec{b} = \hat{i} - \hat{j} + \hat{k} , then which of the following is correct ? (A) a⃗∥b⃗\vec{a} \parallel \vec{b} (B) a⃗⊥b⃗\vec{a} \perp \vec{b} (C) ∣b⃗∣>∣a⃗∣|\vec{b}| > |\vec{a}| (D) ∣a⃗∣=∣b⃗∣|\vec{a}| = |\vec{b}|

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