CBSE

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

Problem

\mathbf{a}+2\mathbf{b}+3\mathbf{c}=\mathbf{0}

, then

\mathbf{a}\times\mathbf{b}+\mathbf{b}\times\mathbf{c}+\mathbf{c}\times\mathbf{a}=

(1)

2(\mathbf{a}\times\mathbf{b})

(2)

6(\mathbf{b}\times\mathbf{c})

(3)

3(\mathbf{c}\times\mathbf{a})

(4)

0