[10pts] For the CG amplifier shown below, find the low-frequency gain (V_(0))/(V_(sig )) ( 3 pts ), the pole
locations \omega _(P1) and \omega _(P2)[ra(d)/(sec)](2\times 3pts) and hence an estimate of the 3-dB location \omega _(H)[ra(d)/(sec)]
(1pts). Ignore the channel length modulation effect and the body effect of M_(1) transistor.