(a) Write the signals of Figure 2.37 as the linear combination of two delayed triangular functions. That is, write x_a(t) = a₁ Î› ((t - t₁) / T₁) + a₂Λ((t - t₂) / T₂) by finding appropriate values for a₁, a₂, t₁, t₂, T₁, and T₂. Do similar expressions for all four signals shown in figure 2.36.

(b) Given the Fourier-transform pair Λ(t) †” sinc² (f), find their Fourier transforms using the superposition, scale-change, and time-delay theorems.Compare your results with the answers obtained in Problem 2.26.

Figure 2.36

Figure 2.37

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1.5 0.5 0.5 -0.5 3 2 3 1, s 1,s 1.5 1.5 0.5 0.5 3 3 1, s 1, S 2. 2. 2. 2. 2. R V; R +, Output Input Ra Rp