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Which function is shown on the graph?

f(x)= −1/2cosx

f(x)= −1/2sinx

f(x)= 1/2cosx

f(x)= 1/2sinx

 

What is the frequency of the sinusoidal graph?

Which equation represents the function on the graph?

f(x)= cos1/4x

f(x)= sin1/4x

f(x)= sin4x

f(x)= cos4x

 

What is the period of the function f(x)=cos10x ?

 

10

1/5

π/5

 Feb 7, 2019
 #1
avatar+101870 
+2

First one

 

f(x) =(-1/2) cos (x)

 

Second one

 

The frequency = 1 /period =  1 /(pi/2)   =   2/pi

 

 

Third one

 

f(x)  = cos(4x)

 

 

Last one

 

Period  =  2pi/10   = pi / 5

 

 

cool  cool cool

 Feb 7, 2019

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