Question

If $\vec{a}+2\vec{b}+3\vec{c}=\vec{0}$ and
$(\vec{a}\times\vec{b})+(\vec{b}\times\vec{c})+(\vec{c}\times\vec{a})=\lambda(\vec{b}\times\vec{c})$
then the value of λ is equal to

• A. 4
• B. 2
• C. 6
• D. 3

Answer 1

Answer: (C)

6

Answer 2

The correct answer is (C) : 6.