Solve this following

Question:

If $[\vec{a} \times \vec{b} \vec{b} \times \vec{c} \vec{c} \times \vec{a}]=\lambda[\vec{a} \vec{b} \vec{c}]^{2}$ then $\lambda$ is equal to :

 

  1. 2

  2. 3

  3. 0

  4. 1


Correct Option: , 4

Solution:

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