### EE 212 Homework 1

**Due:** BOC W 01/28/2004

- Problem 8.9
- Problem 8.11a, d, f, g (sketch in complex plane showing both rectangular
and polar coordinates)
- Problem 8.12a, d, f, g (sketch in complex plane showing both rectangular
and polar coordinates)
- Given the sinusoid 4sin(5t - 0.2rad)
- rewrite the sinusoid as a cosine only
- determine the sinusoid's (as a cosine) amplitude, angular frequency,
ordinary frequency, period, and phase angle

- Given the sinusoids v(t) = 3cos(4t + 0.1rad) and i(t) = 2cos(4t - 0.6rad),
determine in both radians and seconds how much v(t) leads or lags i(t).