I need expert to explai me how to deal it.. thanks advanced

Calculate the current i(f) using phasors for the following equation: i(t) = 5V2sin(wt) + 10vV2 cos(wt) + 6vV2 cos(wt + n/6) + 7V2sin(wt 1/3) a) Specify the final current in the form i(t) = I, sin(wt + @) (8 points) b) Specify the final current in the form i(t) = I,,, cos(wt + @) (8 points) c) Calculate the RMS value of current (4 points)