# How do you find the amplitude, period, and shift for #y= cos (x-pi/2)#?

##### 1 Answer

Dec 6, 2015

Amplitude is

#### Explanation:

In a generic trigonometric function like

You have that:

#A# is the amplitude- The period is
#(2\pi)/\omega# #phi# is the phase shift.

In your case,

So, the amplitude is

Note that, since