【考研类试卷】考研数学二-414 (1)及答案解析.doc

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1、考研数学二-414 (1)及答案解析(总分:100.00,做题时间:90 分钟)一、填空题(总题数:25,分数:100.00)1.设 (分数:4.00)2.设 (分数:4.00)3.设 (分数:4.00)4.设 f(x)为连续函数,且满足 (分数:4.00)5.求 (分数:4.00)6.求 (分数:4.00)7.求 (分数:4.00)8.求 (分数:4.00)9.求 (分数:4.00)10.求 (分数:4.00)11. (分数:4.00)12.求 (分数:4.00)13. (分数:4.00)14. (分数:4.00)15. (分数:4.00)16. (分数:4.00)17. (分数:4.00)

2、18. (分数:4.00)19. (分数:4.00)20. (分数:4.00)21. (分数:4.00)22. (分数:4.00)23. (分数:4.00)24.设 f(x)满足等式 ,且 f(1)=4,则 (分数:4.00)25.设函数 y=y(x)满足 ,且 y(1)=1,则 (分数:4.00)考研数学二-414 (1)答案解析(总分:100.00,做题时间:90 分钟)一、填空题(总题数:25,分数:100.00)1.设 (分数:4.00)解析: 解 由 于是 2.设 (分数:4.00)解析: 解 由 则 3.设 (分数:4.00)解析: 解 由 4.设 f(x)为连续函数,且满足 (分

3、数:4.00)解析:cosx-xsinx+C 解 由 5.求 (分数:4.00)解析:解 6.求 (分数:4.00)解析:解 7.求 (分数:4.00)解析: 解 8.求 (分数:4.00)解析:解 9.求 (分数:4.00)解析:解 10.求 (分数:4.00)解析:解 11. (分数:4.00)解析:解 12.求 (分数:4.00)解析: 解 因为 所以 13. (分数:4.00)解析:解 14. (分数:4.00)解析:解 15. (分数:4.00)解析:解 16. (分数:4.00)解析: 解 而 所以 17. (分数:4.00)解析:解 18. (分数:4.00)解析: 解 当-1x2 时, 当 x2 时, 由 得 取 C 2 =C, 则 19. (分数:4.00)解析:解 20. (分数:4.00)解析: 解 因为 所以 21. (分数:4.00)解析:ln3解 22. (分数:4.00)解析:解 23. (分数:4.00)解析:4-解 24.设 f(x)满足等式 ,且 f(1)=4,则 (分数:4.00)解析: 解 于是 25.设函数 y=y(x)满足 ,且 y(1)=1,则 (分数:4.00)解析: 解 因为 于是 由 y(1)=1 得 C=0,故

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