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If |vecAxxvecB|=|vecA.vecB|. Then the an...

If `|vecAxxvecB|=|vecA.vecB|`. Then the angle between `vecA` and `vecB` will be :

A

`30^(@)`

B

`45^(@)`

C

`60^(@)`

D

`75^(@)`

Text Solution

Verified by Experts

The correct Answer is:
2
`" "|vecAxx vecB|= |vecA*vecB|`
`rArr AB sin theta = Ab cos theta `
`rArr sin theta = costheta `
`rArr tan theta = 1 rArr theta = 45^(@)`
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