I wonder if anyone can help me out with this problem, as i'm not sure where to start, the circuit is:

The questions i've got to calculate are:

a) the resonant frequency

b) the dynamic resistance

c) the current at resonance

d) the circuit 'Q' factor

e) the voltages across all 4 components

My thought was to initially ignore the 990k resistor and work on the parallel part, but the formula I know for resonant frequency is:

and would apply to a resistor in series with an inductor which are then both in parallel with a capacitor, so i'm not sure how to adapt the equation - or can i just ignore the 470ohm resistor in the resonant frequency equation?

Thanks for looking, and any help/advice with this is much appreciated, as i'm not getting anywhere.