Ex: Find the F. T. of the periodic rectangular pulse shown below X(t) Sols -To Cn=c -212 1 1/1 (n = 1 sin(n=2²) * It T₁=2, T=1 + (n = + sin() = + sine (WT). Wo=TT Cn ntt 2 _n=o+C₁ = 1₁ n is even +10/1/ X (W) = 2πT ½ sinc(1) S (W-NTT) I n To How did he get the value inside the circle

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Q: Find a counterexample in the following cases. 5. (P^Q⇒R)⇒(P⇒R)^(Q⇒R)

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