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If a = i + 2j - 3k, b = 3i - j + 2k, the...

If `a = i + 2j - 3k, b = 3i - j + 2k`, then angle between a + b and a - b is :

A

`30^(@)`

B

`60^(@)`

C

`90^(@)`

D

`0^(@)`

Text Solution

Verified by Experts

The correct Answer is:
C
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