. Phase of a Sinusoid: The phase of a sinusoid can be related to a time shift as follows: x(t)=A \cos \left(2 \pi f_{0} t+\phi\right)=A \cos \left(2 \pi f_{0}\left(t-t_{1}\right)\right) Assume

that the period To of the sinusoidal wave is 8 s. Find the value of ø when ti=-2 sec Find the value of ø when ti= 3 sec Find the value of ø when tı=7 sec