Find the Reference Number and the Terminal Point $p ( x , y )$

question 21

Multiple Choice

Find the reference number and the terminal point $p ( x , y )$ determined by $t = - \frac { 11 \pi } { 6 }$

• A) \(- \frac { \pi } { 6 }\), \(P ( x , y ) = \left( \frac { - \sqrt { 5 } } { 2 } , - \frac { 1 } { 2 } \right)\)
• B) \(\pi\), \(P ( x , y ) = ( - 1,0 )\)
• C) \(\frac { \pi } { 6 }\), \(D ( x , y ) = \left( \frac { \sqrt { 3 } } { 2 } , \frac { 1 } { 2 } \right)\)
• D) \(\frac { \pi } { 3 }\), \(p ( x , y ) = \left( \frac { 1 } { 2 } , \frac { \sqrt { 5 } } { 2 } \right)\)
• E) \(\frac { 11 \pi } { 6 }\), \(p ( x , y ) = \left( - \frac { - \sqrt {5 } } { 2 } , - \frac { 1 } { 2 } \right)\)

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Definitions:

Acromiotrapezius

A muscle in some mammals that extends from the neck and back to the scapula, aiding in movements of the shoulder.

Clavotrapezius

Clavotrapezius, in certain animals like rodents, is a muscle that extends from the clavicle to the scapula, facilitating movement of the scapula and contributing to the posture of the upper body.

Latissimus Dorsi

A large, flat muscle on the back that helps in the movement of the shoulders and arms.

Trapezius Group

A collection of muscles extending from the neck to the mid-back, responsible for moving the shoulder blades and supporting the arm.