Find the period, amplitude, and phase shift of the function.

Question

y=3+2cos(2x-pi/2)

 

period

 

amp

 

phase shift

Answer 1

The amplitude is 2

 

The period:

 

2(x - π/2)

 

1 

 

 

phase shift:

 

2(x - π/4)

 

is π/4