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Reference Angle: Point on Unit Circle

Easy

Point

$Q$

lies on unit circle

$O$

, as shown in the figure below. Find the coordinates of point

$Q$

.

Elimination Tool

Select one answer

A

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

B

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

C

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

D

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

E

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

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