Cable Theory: Given a long and cylindrical dendrite that has GABAa receptor uniformly distributed along the entire length. You insert a current passing electrode $($electrode A$)$ into the middle of the dendrite and record membrane voltage $($Vm$)$ with another electrode $($electrode B$)2$ mm away from the current passing electrode. $3\mathrm{.}1$ When you pass a steady hyperpolarizing current Io$=-2$mA with electrode A$,$ the steady state Vm at electrode A changes to Vma$=-100$ mV$.$ What is the input resistance $($cable theory$)$