Derive rationalized expressions for the admittances of the two parallel arms. Hence derive an expression for the total circuit admittance.
If w is the angular frequency (equal to 2*pi*f, where f is the frequency in Hz),
j is the complex operator, equal to sqrt(-1):
convert all impedances to admittances:
Admittance of L = 1/(jwL)
This solution converts all impedances to admittances and shows full calculations for deriving the expression.