+0  
 
0
53
2
avatar

Use an Addition or Subtraction Formula to write the expression as a trigonometric function of one number.

sin(12°) cos(18°) + cos(12°) sin(18°)

 Apr 21, 2020
 #1
avatar+24883 
+1

Use an Addition or Subtraction Formula to write the expression as a trigonometric function of one number.
\(\sin(12^\circ) \cos(18^\circ) + \cos(12^\circ) \sin(18^\circ) \)

 

\(\begin{array}{|rcll|} \hline && \sin(12^\circ) \cos(18^\circ) + \cos(12^\circ) \sin(18^\circ) \\ &=& \sin(12^\circ+18^\circ) \\ &=& \sin(30^\circ) \\ &=& \mathbf{0.5} \\ \hline \end{array}\)

 

laugh

 Apr 21, 2020
 #2
avatar
0

thhhhxxx

Guest Apr 21, 2020

34 Online Users

avatar
avatar
avatar
avatar
avatar