Could someone please help me with the below tasks c & d? Thank you!

(b) The following voltage is applied to terminals A and B of the circuit shown below. v = l lOsinwt + 2253(3mt + 50) + 5.55in(5wt - 35)Volts. Fundamental frequency = SOHz 250 100mH C V A B i) Calculate the value of capacitor, C, required to produce resonance at the third harmonic frequency ( lSOHz) ii) With this value nd an expression for the instantaneous current in the circuit (C) Analyse the following circuits by applying the principles of AC theory to calculate the impedance of the following circuits when connected to a SOHz sinusoidal ac supply. 100 Ohm: Ll . R' lmH .. ' C1 1yF V1 240V . 50H: + V1 TOO Ohms L1 J C1 240V; 50H; RI imH T ruF ('3 Make a judgment about the expression generated in b(ii) and apply circuit theory to explain why the second term represents the majority of total current drawn. Then apply circuit theory to explain what happens at resonance in a parallel RLC circuit. ('-= 400 Words)