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A particle is describing uniform circula...

A particle is describing uniform circular motion in the anti-clockwise sense such that its time period of revolution is T. At t = 0 the particle is observed to be at A. If `theta_1` be the angle
between acceleration vector at `t=T/4` and average velocity vector in the time interval 0 to T/4 and `theta_2` be the angle between acceleration vector at `t= T/4` and the vector representing change in velocity in the time interval 0 to T/4, then :

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