If a straight line through the origin bi...

If a straight line through the origin bisects the line passing through the given points `(acosalpha,asinalpha)` and `(acosbeta,asinbeta),` then the lines are perpendicular are parallel have an angle between them of `pi/4` none of these

Perpendicular

Parallel

Angle between them is `pi/4`

None of these

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