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I : The vector 6i + 2j + k, 2i - 9j + 6k...

I : The vector 6i + 2j + k, 2i - 9j + 6k are mutually perpendicular.
II : The vectors I + 2j - , 2i + j + k are mutually perpendicular

A

only I is ture

B

Only II is ture

C

both I and II are true

D

Neither I nor II are true

Text Solution

Verified by Experts

The correct Answer is:
A
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