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The vector 2 hati + hatj + hatk is peerp...

The vector `2 hati + hatj + hatk` is peerpendicular to `hati - 4 hatj + lamda hatk, if lamda` is :

A

0

B

`-1`

C

2

D

`-3.`

Text Solution

Verified by Experts

The correct Answer is:
C
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