Question 444630
Find the period 
cos(7x)



Standard form for the cosine function: y=Acos(Bx-C), with A=amplitude, 2π/B=period, and C/B=Phase shift
For given function, cos(7x), B=7
so period=2π/7 
Amplitude=1, and  phase shift=0
ans:
Period of given function=2π/7