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) \(\frac { 11 \pi } { 6 }\), \(p ( x , y ) = \left( - \frac { - \sqrt {5 } } { 2 } , - \frac { 1 } { 2 } \right)\)