习题5.4

习题5.4

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2.4.

3.c=978-7-111-33187-2-Chapter07-185.jpg.

4.978-7-111-33187-2-Chapter07-186.jpg.

5.1)978-7-111-33187-2-Chapter07-187.jpgVy=978-7-111-33187-2-Chapter07-188.jpg;2)Vx=978-7-111-33187-2-Chapter07-189.jpgVy=2π;3)Vx=978-7-111-33187-2-Chapter07-190.jpgVy=978-7-111-33187-2-Chapter07-191.jpg.

6.2π2a2b.

7.978-7-111-33187-2-Chapter07-192.jpg.

8.978-7-111-33187-2-Chapter07-193.jpg.

9.6a.

10.978-7-111-33187-2-Chapter07-194.jpg.

11.978-7-111-33187-2-Chapter07-195.jpg.

12.8a.

13.978-7-111-33187-2-Chapter07-196.jpg.

14.1102.5π.

15.978-7-111-33187-2-Chapter07-197.jpg.

16.978-7-111-33187-2-Chapter07-198.jpg.

17.50,100.

18.1)9987.5;2)19850.

19.毛利润:85;纯利润:75.

20.1)978-7-111-33187-2-Chapter07-199.jpg;2)x=4;3)Cx)=978-7-111-33187-2-Chapter07-200.jpg978-7-111-33187-2-Chapter07-201.jpg.