Use the Given Function Value(s),and Trigonometric Identities (Including the Cofunction $\frac { 1 } { 2 }$

Multiple Choice

Use the given function value(s) ,and trigonometric identities (including the cofunction identities) ,to find the indicated trigonometric functions. ?sin 30° = $\frac { 1 } { 2 }$ ,cos 30° = $\frac { \sqrt { 3 } } { 2 }$ ?
?sin 60° and cos 60°

A) ?sin 60° = 2 and cos 60° = $\frac { 1 } { 2 }$
B) ?sin 60° = $\sqrt { 3 }$ and cos 60° = $\frac { 1 } { 2 }$
C) ?sin 60° = $\frac { \sqrt { 3 } } { 2 }$ and cos 60° = $\sqrt { 2 }$
D) ?sin 60° = $\frac { \sqrt { 3 } } { 2 }$ and cos 60° = $\frac { 1 } { 2 }$
E) ?sin 60° = $\frac { \sqrt { 3 } } { 2 }$ and cos 60° = 2