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The vectors hati + 2 hatj + 3 hatk, lamd...

The vectors `hati + 2 hatj + 3 hatk, lamda hati+ 4 hatj + 7 hatk,-3 hati - 2 hatj - 5 hatk` are collinear if `lamda` is :

A

3

B

4

C

5

D

6

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The correct Answer is:
A
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