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If |vec(A) xx vec(B)| = |vec(A).vec(B)|,...

If `|vec(A) xx vec(B)| = |vec(A).vec(B)|`, then angle between `vec(A)` and `vec(B)` will be :

A

`30^(@)`

B

`45^(@)`

C

`60^(@)`

D

`90^(@)`

Text Solution

Verified by Experts

The correct Answer is:
B
`|vec(A) xx vec(B)|= vec(A).vec(B)`
`rArr AB sin theta= AB cos theta rArr tan theta=1 rArr theta= 45^(@)`
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