Use a calculator to find the function value. Give your answer rounded to seven decimal places, if necessary.
-2 sin 44° 14' cos 44° 14' - sin 88° 28'
A)1
B)0
C)2
D)-1

Question

Quizplus · Accepted Answer

The expression can be simplified using the trigonometric identity $2 \sin \theta \cos \theta = \sin 2\theta$. Here, $2 \sin 44° 14' \cos 44° 14'$ simplifies to $\sin 88° 28'$, which is subtracted from itself, resulting in 0.

Use a Calculator to Find the Function Value