Trigonometry
Amplitude=4, Period=2π, Phase shift=π2\(\text{Amplitude}\)=4,~\(\text{Period}\)=2\(\pi\),~\(\text{Phase shift}\)=\(\frac{\pi}{2}\)
Amplitude=4, Period=2π, Phase shift=−π2\(\text{Amplitude}\)=4,~\(\text{Period}\)=2\(\pi\),~\(\text{Phase shift}\)=-\(\frac{\pi}{2}\)
Amplitude=14, Period=4π, Phase shift=π\(\text{Amplitude}\)=\(\frac{1}{4}\),~\(\text{Period}\)=4\(\pi\),~\(\text{Phase shift}\)=\(\pi\)
Amplitude=14, Period=2π, Phase shift=−2π\(\text{Amplitude}\)=\(\frac{1}{4}\),~\(\text{Period}\)=2\(\pi\),~\(\text{Phase shift}\)=-2\(\pi\)