Answer
Amplitude $=\dfrac{1}{2}$ in; Phase shift $=2$; Period $=8$ s; Frequency $=\dfrac{1}{8}$ in per sec
Work Step by Step
Amplitude, $|A|=|\dfrac{1}{2}|=\dfrac{1}{2}$
So, $ f=\dfrac{\omega}{2 \pi}=\dfrac{\pi/4}{2 \pi}=\dfrac{1}{8}$
Now, Phase shift $=\dfrac{\pi/2}{\pi/4}=2$
and period, $ P=\dfrac{2 \pi}{\omega}=\dfrac{2 \pi}{\pi/4}=8$
Hence, Amplitude $=\dfrac{1}{2}$ in; Phase shift $=2$; Period $=8$ s; Frequency $=\dfrac{1}{8}$ in per sec
