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Moderate

Reference Angle: Point on Unit Circle

ACTMAT-E44YG5

Point Q lies on unit circle O, as shown in the figure below. Find the coordinates of point Q.

A

$ {\left(\cfrac { \sqrt { 2 } }{ 2 } , -\cfrac { \sqrt { 2 } }{ 2 } \right)} $

B

$ {\left(\cfrac { \sqrt { 2 } }{ 2 } ,\cfrac { \sqrt { 2 } }{ 2 } \right)} $

C

$ {\left(\cfrac { \sqrt { 3 } }{ 2 } , \cfrac { 1 }{ 2 } \right)} $

D

$ {\left(\cfrac { 1 }{ 2 } ,\cfrac { \sqrt { 3 } }{ 2 } \right)} $

E

$ {\left(\cfrac { 1 }{ 2 } , \cfrac { 1 }{ 2 } \right)} $