Answer
The black or shorter curve is $y=cos x$
The red or longer curve is $y=cos (\frac{x}{2})$
It is clear that smaller the value of B, longer is the curve's cycle.
Work Step by Step
The black or shorter curve is $y=cos x$
The red or longer curve is $y=cos (\frac{x}{2})$
It is clear that smaller the value of B, longer is the curve's cycle.
