Find the equation of the graphsSolutiona Amplitude is 4 Peri

Solution

(a) Amplitude is 4

Period is 4pi, when x=0, value of f(x)=4

so, function is f(x)=4cos(x/2)

(b)Amplitude is= 6

Period is=pi, when x=0, value of f(x)=0

so, function is f(x)=4sin(2x)

(c) Amplitude is =1

Period is 0.25, when x=0, value of f(x)=1

so, function is f(x)=1cos(8pix)

period