The reason for this simplification is simply mathematical convenience, as will
become apparent in the following examples; you will have to remember that the
ejωt term that was removed from the complex form of the sinusoid is really still
present, indicating the specific frequency of the sinusoidal signal, ω. With these
caveats, you should now be prepared to use the newly found phasor to analyze AC
circuits. The following comments summarize the important points developed thus
far in the section.