A transistor amplifier has the following gain: A_\nu=\frac{100}{\left(1-j\frac{50Hz}{f} \right)\left(1-j\frac{200Hz}{f} \right) \left(1+j\frac{f}{10kHz} \right)\left(1+j\frac{f}{20kHz} \right)}
a. Sketch the normalized response A^{\prime}_{\nu} = A_\nu / A_{\nu_{max}}, and determine the bandwidth of the amplifier.
b. Sketch the phase response, and determine a frequency where the phase angle is close to 0°.