Determine the magnitude, radial frequency, cyclical frequency, period, and phase for the following waveforms. Remember that the ac function in the time domain is always expressed as a cosine.
(a) $i_1(t) = 3 cos (110 rad/s * t + 25\circ) A$
(b) $v_2(t) = 36 sin (280 rad/s * t + 170\circ) V$

(a)
magnitude = A
radial frequency, $\omega$ = rad/s
cyclical frequency, $f$, = Hz
period = ms
phase = $\circ$
(b)
magnitude = V
radial frequency = rad/s
cyclical frequency = Hz
period = ms
phase = $\circ$