习题3.7

习题3.7

1.978-7-111-33187-2-Chapter07-94.jpg.

2.978-7-111-33187-2-Chapter07-95.jpg处曲率半径有最小值978-7-111-33187-2-Chapter07-96.jpg.

3.978-7-111-33187-2-Chapter07-97.jpg.

4.有公切线;凹向一致;曲率相同.