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Vectors vec(3i)-vec(2i)+veck and vec(2i)...

Vectors `vec(3i)-vec(2i)+veck` and `vec(2i)+vec(6j)+vec(mk)` will be perpendicular to each other if

A

m=8

B

m=6

C

m=3

D

m=1

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The correct Answer is:
B
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