Answer:
a) period = 2 pi.
Step-by-step explanation:
Given : A particular sound wave can be graphed using the function y = –3 sin x.
To find :Find the period of the function.
Solution : We have given that y = –3 sin x.
By the sine function : =a sin (bx) .
Where, a = amplitude, b = any number ,
Formula of time period = [tex]\frac{2\ pi}{b}[/tex]
On comparing the sine function with given function
Here, a = -3 , b = 1
Plugging the values in formula of period
Then, Period = [tex]\frac{2\ pi}{1}[/tex].
Period = 2 pi
Therefore, a) period = 2 pi.
