918 Consider the waveform in Figure P918. (a) Write an expression for the waveform f t using step functions. (b) Use the time-domain

9–18 Consider the waveform in Figure P9–18.

(a) Write an expression for the waveform f t ð Þ using step functions.

(b) Use the time-domain translation property to find the Laplace transform of the waveform f t ð Þ found in part (a).

(c) Verify the Laplace transform found in

(b) by applying the definition of the Laplace transformation in Eq. (9–2) to the waveform f t ð Þ found in (a).

f(t) A 0 -A T 2T FIGURE P9-18