How do you find the amplitude, period and phase shift for #y = 2 cos (x/2 - Pi/6)#?
Amplitude: (-2, 2)
Period of cos x is
There are several steps.
The form of this equation is
(Some textbooks use the first, others use the second.)
The Amplitude is
Period can be found by
Phase Shift is found by solving:
#y = 2cos(1/2x-pi/6)" "#(so it is clear that #B = 1/2#)
Found by simplifying
Found by solving: