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Consider three points : P (- sin (beta-...

Consider three points : `P (- sin (beta- alpha), - cos beta), Q = (cos(beta-alpha), sin beta), and R = (cos (beta - alpha + theta), sin (beta - theta))`, where` 0< alpha, beta, theta < pi/4` Then

A

P lies on the line segment RQ

B

Q lies on the line segment PR

C

R lies on the line segment QP

D

P,Q, R are non-collinear.

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