If a straight line through the origin bi...

If a straight line through the origin bisects the line passing through the given points A `(acosalpha,asinalpha)` and B `(acosbeta,asinbeta),` then the lines are

A

are perpendicular

B

are parallel

C

have an angle between them of `pi/4`

D

None of these

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The correct Answer is:

A

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