考研数学强化班讲义参考 答案(李铮).doc

2011年考研数学强化班讲义参考答案（李铮） (上册) 第一讲 §1、 ;; §2、 §3、 第二讲 §1、 ; §3、 第三讲 §1、 ; ； ； ; §2、1. ; 2. 4π ; 3. ;4. 5. ; 6. ;8. ;9. §3、1. ; 2. ? ; 3.π/2 §4、 1. (1);(2)( );(3)( ) (4) ; ；3.; 4.; 5. 第四讲 1. -3/2 ; 2. 22 ; 3. ?30 ; 4. ; 5. ?/3 ; 6. ?/3 ; 1. (1,2,3) ; 2. ; 3. 5/4 ; 4. ; 5. ; 6. x-y-z-3=0 （下册） 第五讲 8.;9. ;12.; 13.. 偏导数在几何上的应用 1. a=-5,b=-2 ;2.(C); 4. 第六讲 1.; 2. ; 3. 4. ; 5.;6.;7. (A) ; 8. -2/5 ; 9.;10.;11.; 12. 5/3+?/2 ; 14. ; 18.;19. 2?a2 第七讲 一、1. (D) ; 2. (C) ; ; 5. ; 6. ; 7. ; 8. ; 9. ; 10. 二、1． ; 2. 2lnx+2-2ln2 ; 3. ; 4. y=ex ; 三、1. (1) ; (2) ; 2. ; 3. ; ; 5. ; 6. ; 7. 8. ;9. ; 10.. 第八讲 §2、1.(C); §3、1. (1) R=3 , (2)(-2,4) ; 2. 4. ; 6.; 7. [-1,1], ;8.; 9.; §4、1. ; 2. ; 3. ; 4. 5. 三重积分 1. ; 2.;3. ;4.; 5.; 第九讲 §1、1. 12a ;2.;3.; §2、1.;2.;3.; 4. ; §3、1. ; 2. (C) ; 4. ; §4、1. ; 2. 8? ; 3. 18? ; 4. 2?;5. 2Rr2? risk managers with two account manager to deal with the above key. Section I of chapter III risk management requirements pre-loan investigation pre-loan investigation should double handle. Pre-loan investigation dominated by field investigations on the ground, while utilizing credit enquiries, telephone enquiries, bank information system query-related personnel, and so on. Interview system of Banks strict application of the system of personal credit business interview. Investigators should work with borrowers, to the repayment or the guarantor credit business, such as parties and the spouse of confirmed acts such as loans, guarantees, verification of its authenticity and its rights and obligations in the credit business, retain these signed transcript of the interview, from the first step to prevent false loans and other business risks. Investigator should retain the borrower sign a personal loan application, loan applications should be clearly the amount, purpose, duration and other information. Investigators should follow the practice for information collection and verification of d