1. The signal x(1) shown in Figurel may be expressed as x(1) 12 t- x(4) -...

  

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1. The signal x(1) shown in Figurel may be expressed as x(1) 12 t- x(4) - Atri(-) + Brees (*) - Crece (4) (175) + = 9 6 Find the values of A, a, B, b, B, C, c and X. 3 2. Draw a labeled sketch of each of the following signals: (a) x(t)=2cos(z)u(t+4)u(2-t). (b) x(t)=rect (0.25t) + 2tri (0.5t)-tri(t) O -3 -10 0 Figure 1 10 1. The signal x(1) shown in Figurel may be expressed as x(1) 12 t- x(4) - Atri(-) + Brees (*) - Crece (4) (175) + = 9 6 Find the values of A, a, B, b, B, C, c and X. 3 2. Draw a labeled sketch of each of the following signals: (a) x(t)=2cos(z)u(t+4)u(2-t). (b) x(t)=rect (0.25t) + 2tri (0.5t)-tri(t) O -3 -10 0 Figure 1 10