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If veca=5hati-hatj-3hatk and vecb=hati+3...

If `veca=5hati-hatj-3hatk` and `vecb=hati+3hatj-5hatk`, then show that the vectors `(veca+vecb)` and `(veca-vecb)` are perpendicular.

A

`30^(@)`

B

`45^(@)`

C

`60^(@)`

D

`90^(@)`

Text Solution

Verified by Experts

The correct Answer is:
D
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