3. Calculate the actual propagation delay time tpHl.actuat and TPLH actual of a CMOS inverter where transistor parameters are (W/L)n = 0.35,, (W/L)p = 3.7, Vron = 1.1 V, Vro.p = -0.95 V, kn = 130 A/V2, k, = 175 A/V2 and assume that the output load capacitance 1.75 pF and T, 1 ns and ty = 0.5 ns for non-ideal square wave input signal.