1.

If vecP and vecQ denote the sides of parallelogram and its area is (1)/(2)PQ, then the angle between vecP and vecQ is

Answer»

`0^(@)`
`30^(@)`
`45^(@)`
`60^(@)`

SOLUTION :`(1)/(2) PQ =|vecPxxvecQ| = PQ SIN theta`
or sin `theta=(1)/(2) or theta =30^(@)`


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