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If vec a , vec b , vec c are non coplana...

If `vec a , vec b , vec c` are non coplanar and
`(vec a+lamda vec b).[(vec b+3 vec c) times (vec c -4 vec a)]=0`
then the value of `lamda` is equal to -

A

0

B

`1/12`

C

`5/12`

D

3

Text Solution

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The correct Answer is:
B
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