9. Prove the following statements about transfer functions. Iz v₁ & 10 G₂₁ = V₂ - 1/₂ = 2₂ V₂ I₁ V z U ZL Zz1 ZL Zzz +Z₁ To V₁

0 G₂1 = - Zz1 N₁₂₁ = √ ₂ I YL Y21 Yzz + YL N₂ Zzia x Zzıb X Z₂2a + Z116 -6 (2)