Course Contents $.$Week $10-$ Pre Class $$ Cosine function, parameter B

Consider the $f(x)=cos(Bx)$ function shown in the figure in blue color. What is the value of parameter $B$ for this function? This parameter is called angular frequency in physics and it is denoted by $.$

As a reference the $g(x)=cos(x)$ function is shown in red color, and green tick marks are drawn at integer multiples of $n.$