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If |vec(a)+vec(b)|ge|vec(a)-vec(b)| then...

If `|vec(a)+vec(b)|ge|vec(a)-vec(b)|` then angle between `vec(a)` and `vec(b)` may be

A

`50^(@)`

B

`90^(@)`

C

`60^(@)`

D

`120^(@)`

Text Solution

Verified by Experts

The correct Answer is:
A, B, C

`|vec(a)+vec(b)|lArr|vec(a)-vec(b)|`
`rArr` angle between `vec(a) & vec(b)lArr90^(@)`
`rArrvec(a)vec(b)lArr90^(@)`
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