4. A 3-pole feedback amplifier has a gain and phase response as shown below. Forthe statements given, indicate whether true (T) or false (F) for this amplifier? \text { At } \omega=\omega_{1} \text { the system is oscillatory } \text { The system is unconditionally stable } \text { At } \omega=\omega_{1} \text { the phase margin is } 0^{\circ} \text { At } \omega=\omega_{p 2} \text { the system is stable }

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