1.

If the scalar and vector products of two vectors vecA and vecB are equal in magnitude, then the angle between the two vectors is

Answer»

`45^(@)`
`90^(@)`
`180^(@)`
`120^(@)`

Solution :`|VECA*vecB|=|vecA xx vecB|`
`AB cos THETA=AB SINTHETA`
`1=tan theta`
`tan theta=1`
`tan theta = tan45^(@)`
`theta=45^(@)`


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