32.(1)∵∠1=∠3+∠C
∴∠4=∠3+∠C
∵∠ADC=∠4+∠3=∠2+∠BAD=∠3+∠C+∠3
∴∠2+BAD=∠C+2∠3
又∵∠2=∠C
∴∠BAD=2∠3
(2)∵∠ACB=∠E+∠CDE
∠2=∠BDA+∠BAD
又∵∠2=∠ACB
∴∠E+∠CDE=∠BDA+∠BAD
∵∠ADE=∠AED=∠ADB+∠CDE
∴∠ADB+∠CDE+∠CDE=∠ADB+∠DAB
∴∠BAD=2∠CDE
32.(1)∵∠1=∠3+∠C
∴∠4=∠3+∠C
∵∠ADC=∠4+∠3=∠2+∠BAD=∠3+∠C+∠3
∴∠2+BAD=∠C+2∠3
又∵∠2=∠C
∴∠BAD=2∠3
(2)∵∠ACB=∠E+∠CDE
∠2=∠BDA+∠BAD
又∵∠2=∠ACB
∴∠E+∠CDE=∠BDA+∠BAD
∵∠ADE=∠AED=∠ADB+∠CDE
∴∠ADB+∠CDE+∠CDE=∠ADB+∠DAB
∴∠BAD=2∠CDE