Use the addition formulas for sine and cosine to simplify the expression. $$\sin 54 ^ { \circ } \cos 24 ^ { \circ } - \cos 54 ^ { \circ } \sin 24 ^ { \circ }$$
A) $\frac { \sqrt { 2 } } { 2 }$
B) 1/2
C) 0
D) 1
E) $\frac { \sqrt { 3 } } { 2 }$

Question

Quizplus · Accepted Answer

The Answer is B

Use the Addition Formulas for Sine and Cosine to Simplify sin⁡54∘cos⁡24∘−cos⁡54∘sin⁡24∘\sin 54 ^ { \circ } \cos 24 ^ { \circ } - \cos 54 ^ { \circ } \sin 24 ^ { \circ }sin54∘cos24∘−cos54∘sin24∘

Use the Addition Formulas for Sine and Cosine to Simplify $\sin 54 ^ { \circ } \cos 24 ^ { \circ } - \cos 54 ^ { \circ } \sin 24 ^ { \circ }$