Use a calculator to evaluate the function. Round your answers to four decimal places. (Be sure the calculator is in the correct angle mode.)
$\sin 78.9 ^ { \circ }$
A) $- 0.3524$
B) $0.1146$
C) $0.9813$
D) $0.1925$
E) $5.0970$

Question

Quizplus · Accepted Answer

Using a calculator in degree mode, we get $\sin 78.9^\circ = 0.9813$. Rounding to four decimal places, we get $\boxed{	extbf{(C)}\ 0.9813}$.

Use a Calculator to Evaluate the Function sin⁡78.9∘\sin 78.9 ^ { \circ }sin78.9∘

Use a Calculator to Evaluate the Function $\sin 78.9 ^ { \circ }$