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Find the value of lamda such that the ve...

Find the value of `lamda` such that the vectors `vec(a)=2hat(i)+lamda hat(j)+hat(k)` and `vec(b)=hat(i)+2hat(j)+3hat(k)` are orthogonal.

A

0

B

1

C

`(3)/(2)`

D

`(-5)/(2)`

Text Solution

Verified by Experts

The correct Answer is:
D
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