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A unit vector parallel to the sum of the...

A unit vector parallel to the sum of the vectors 2i + 4j - 5k, i + 2j + 3k are

A

`(+- (3i+6j-2k))/(7)`

B

`(+-(3i-6j-2k))/(7)`

C

`(+-(3i+6j+2k))/(7)`

D

`(+-(3i-6j-2k))/(7)`

Text Solution

Verified by Experts

The correct Answer is:
A
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