Question 444633
Find the period 
cos(πx/6)
..

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(π/6)x, B=π/6
so period=2π/π/6)=12 
Amplitude=1, and  phase shift=0
ans:
Period of given function=12