How do I find the input impedance of a 60 ohm transmission line that is a quarter wavelength long if its terminated by i) a short circuit and ii) 1 - 2j ?

I need the answer as soon as possible

1. The conductor used in a three-phase 60 Hz transmission line is 795000 cmil ACSR 54/3 and the lineIt is fully transposed and is 100 miles long. D₁2=7.5 m, 2 D31=1.3 m D23=7.5 m 3 a) Determine the line inductive reactance value. b) capacitive reactance per mile with respect to neutral and line capacitance with respect to neutralset its value.