Answer
Amplitude $=4$ in; Phase shift $=\dfrac{1}{2}$; Period $=2$ s; Frequency=$\dfrac{1}{2}$ in per sec
Work Step by Step
Amplitude, $|A|=|4|=4$
So, $ f=\dfrac{\omega}{2 \pi}=\dfrac{\pi}{2 \pi}=\dfrac{1}{2}$
Now, Phase shift $=\dfrac{\pi/2}{\pi}=\dfrac{1}{2}$
and period, $ P=\dfrac{2 \pi}{\omega}=\dfrac{2 \pi}{\pi}=2$
Hence, Amplitude $=4$ in; Phase shift $=\dfrac{1}{2}$; Period $=2$ s; Frequency=$\dfrac{1}{2}$ in per sec
