Let `0 lt alpha lt (pi)/(2) ` be a fixed angle . If `p=(costheta, sin theta) and Q(cos(alpha-theta))`, then Q is obtained from P byA. clockwise rotation around origin through an angle `alpha`B. anit-clockwise rotation around origin through an angle `alpha`C. reflection in the line through origin with slope `tanalpha`D. reflection in the line through origin which slope `tan((alpha)/(2))`

Let `0 lt alpha lt (pi)/(2) ` be a fixed angle . If `p=(costheta, sin

1.	Let `0 lt alpha lt (pi)/(2) ` be a fixed angle . If `p=(costheta, sin theta) and Q(cos(alpha-theta))`, then Q is obtained from P byA. clockwise rotation around origin through an angle `alpha`B. anit-clockwise rotation around origin through an angle `alpha`C. reflection in the line through origin with slope `tanalpha`D. reflection in the line through origin which slope `tan((alpha)/(2))`
Answer» Correct Answer - D

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