533 The value of the waveformvt = VA VBet u t is 5...

5–33 The value of the waveformvðtÞ = VA − VBe−αt ð Þu t ð Þ is 5 V at t =0, 8V at t = 5 ms, and approaches 12 V as t ! ∞.

(a) Find VA, VB, and α, and then sketch the waveform.

(b) Validate your answers by plotting your result in MATLAB.