Answer with Explanation:
Part 1)
The given sine wave is as
[tex]y=3sin(2\pi t+\pi)[/tex]
The graphical representation of the wave is shown in the attached figure:
Part 2)
For a general wave equation [tex]y(t)=Asin(\omega t+\phi )[/tex]
'A' is defined as amplitude of the wave
[tex](\omega t+\phi )[/tex] is defined as phase of the wave
Upon comparing with the given wave function we observe
1) Amplitude of the given wave is 3
2) Phase of the given wave [tex](2\pi t+\phi )[/tex]
