Given two vectors A = i-2j-3k and B = 4i...

Given two vectors A = i-2j-3k and B = 4i - 2j + 6k. The angle made by (A + B) with the X-axis is

A

`30^(@)`

B

`45^(@)`

C

`60^(@)`

D

`90^(@)`

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The correct Answer is:

B

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