a)
\Observe the circuit:
\The input current is 
Compare the function with
.
Here
.
Find the total impedance.
\
and
are in parallel.



is in series with
.

.
can be written in polar form as
.
\
\
b)
\The input current is 
Compare the function with
.
in polar form can be written as
.


The input current can be written as 
Find the voltage across the resistor.
\

Voltage across the resistor is 
\
\
(c)
\From part(b): The input current can be written as
.
in complex form can be written as 
Redraw the circuit indicating the loop currents.
\
Observe the circuit:
\
Apply KVL at loop 1:
\

Find the voltage drop across the inductor.
\


\
\