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The vectors lambdahati + hatj + 2hatk, h...

The vectors `lambdahati + hatj + 2hatk, hati + lambdahatj +hatk, 2hati - hatj + 2hatk` are coplanar, if:

A

`lambda =-2`

B

`lambda=0`

C

`lambda=1`

D

`lambda =-1`

Text Solution

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The correct Answer is:
A
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