The vector is expressed in unit–vector form

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

Problem

The vector A=7i^−4j^\mathbf{A}=7\hat{i}-4\hat{j} is expressed in unit–vector form. What is the y–component of this vector? (a) 44 (b) 65\sqrt{65} (c) −4-4 (d) 77

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