?

Free Version
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

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