For vectors and

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

Problem

For vectors a=(a1,a2,a3)\mathbf a=(a_1,a_2,a_3) and b=(b1,b2,b3)\mathbf b=(b_1,b_2,b_3), the coefficient of j^\hat{j} in a×b\mathbf a\times\mathbf b is (a) a1b3−a3b1a_1 b_3 - a_3 b_1 (b) a1b2−a2b1a_1 b_2 - a_2 b_1 (c) a3b1−a1b3a_3 b_1 - a_1 b_3 (d) a3b1+a1b3a_3 b_1 + a_1 b_3

Related theory

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