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1、?A? ? 1 ? 1. 67 600 000; 19 656 0002. 12964. 24; 45. 144; 186. 24017. 720; 72; 144; 728. 120; 1260; 34 6509. 27 72010. 40 320; 10 080; 1152; 2880; 38411. 720; 72; 14412. 24 300 000; 17 100 72013. 19014. 2 598 96016. 42; 9417. 604 800 18. 60019. 896; 1000; 91020. 36; 2621. 3522. 1824. 4825. 52!/(13!)
2、4 27. 27 72028. 65 536; 252029. 12 600; 94530. 564 48031. 165; 3532. 1287; 14 11233. 220; 572 ? 2 ? 9. 7410. 0.4; 0.111. 70; 212. 0.5; 0.32; 149/19813. 20 000; 12 000; 11 000; 68 000; 10 00014. 1.05715. 0.0020; 0.4226; 0.0475; 0.0211; 0.000 2417. 9.109 47 106 18. 0.048;19. 5/1820. 0.905222. (n + 1)/
3、2n23. 5/1225. 0.426. 0.492 929 27. 0.0888; 0.2477; 0.1243; 0.209930. 1/18; 1/6; 1/231. 2/9; 1/933. 70/32336. 0.0045; 0.058837. 0.0833; 0.538. 439. 0.4840. 1/64; 21/64; 36/64; 6/6441. 0.517744. 0.3; 0.2; 0.146. 548. 1.0604 10349. 0.432950. 2.6084 106 52. 0.091 45; 0.426853. 12/3554. 0.051155. 0.2198;
4、 0.0343 ? 3 ? 1. 1/32. 1/6; 1/5; 1/4; 1/3; 1/2; 13. 0.3395. 6/916. 1/27. 2/38. 1/2 9. 7/1110. 0.2211. 1/17; 1/3312. 0.504; 0.362914. 35/768; 210/76815. 0.484816. 0.983517. 0.0792; 0.26418. 0.331; 0.383; 0.286; 48.6219. 44.29; 41.18 20. 0.4; 1/2621. 0.496; 3/14; 9/6222. 5/9; 1/6; 5/5423. 4/9; 1/224.
5、1/3; 1/2 26. 20/21; 40/4128. 3/128; 29/153629. 0.089330. 7/12; 3/533. 0.76, 49/76 34. 27/3135. 0.62, 10/1936. 1/237. 1/3; 1/5; 138. 12/3739. 46/18540. 3/13; 5/13; 5/52; 15/5241. 43/45942. 34.4843. 4/945. 1/1148. 2/350. 17.5; 38/165; 17/3351. 0.65; 56/65; 8/65; 1/65; 14/35; 12/35; 9/3552. 0.11; 16/89
6、; 12/27; 3/5; 9/2555. 957. (c) 2/360. 2/3; 1/3; 3/461. 1/6; 3/2065. 9/13; 1/269. 9; 9; 18; 110; 4; 4; 8; 120?128?70. 1/9; 1/1871. 38/64; 13/64; 13/64 73. 1/16; 1/32; 5/16; 1/4; 31/3274. 9/1975. 3/4; 7/1278. p2/(12p+2p2)79. 2?A? 0.555081. 0.953083. 0.5; 0.6; 0.884. 9/19; 6/19; 4/19; 7/15; 53/165; 7/3
7、389. 97/142; 15/26; 33/102 ? 4 ? 1. p(4) = 6/91; p(2) = 8/91; p(1) = 32/91; p(0) = 1/91; p(1) = 16/91; p(2) = 28/91 4. 1/2; 5/18; 5/36; 5/84; 5/252; 1/252; 0; 0; 0; 05. n 2i; i = 0, ,n6. p(3) = p(3) = 1/8; p(1) = p(1) = 3/812. p(4) = 1/16; p(3) = 1/8; p(2) = 1/16; p(0) = 1/2; p(i) = p(i); p(0) = 113
8、. p(0) = 0.28; p(500) = 0.27; p(1000) = 0.315; p(1500) = 0.09; p(2000) = 0.04514. p(0) = 1/2; p(1) = 1/6; p(2) = 1/12; p(3) = 1/20; p(4) = 1/517. 1/4; 1/6; 1/12; 1/219. 1/2; 1/10; 1/5; 1/10; 1/1020. 0.5918;?; 0.10821. 39.28; 3724. p = 11/18;?= 23/7225. 0.46, 1.326. 11/2; 17/527. A/(p + 1/10) 28.3/53
9、1.p32.11 10 (0.9)1033.335.0.067; 1.08937.82.2; 84.539.3/840.11/24342.p ? 1/245.350.1/10; 1/1051.e0.2; 1 1.2e0.253. 1 e0.6; 1 e219.1856. 25357. 0.5768; 0.607059. 0.3935; 0.3033; 0.090260. 0.888661. 0.408263. 0.0821; 0.242465. 0.3935; 0.2293; 0.3935 66. 2/(2n + 1); 2/(2n 2); e167. 2/n; (2n 3)/(n 1)2;
10、e268. (1 e5)8070. p + (1 p)et71.0.1500; 0.101273.5.812574.32/243; 4864/6561; 160/729; 160/72978. 18 (17)n1/(35)n81. 3/10; 5/6; 75/13882. 0.343983. 1.5 ? 5 ? 2. 3.5e5/23.?4. 1/25. 1 (0.01)1/56. 4; 0; 7. 3/5; 6/58. 2 10. 2/3; 2/311. 2/513. 2/3; 1/315. 0.7977; 0.6827; 0.3695; 0.9522; 0.158716. (0.9938)
11、1018. 22.6619. (c)1/2; (d)1/420. 0.9994; 0.75; 0.97722. 9.5; 0.0019 23. 0.9258; 0.176226. 0.0606; 0.052528. 0.836329. 0.999332. e1; e1/234. e1; 1/338. 3/540. 1/y ? 6 ? 2. (a)14/39; 10/39; 10/39; 5/39 (b)84/429; 70/429; 70/429; 70/429; 40/429; 40/429; 40/429; 15/4293. 15/26; 5/26; 5/26; 1/264. 25/169
12、; 40/169; 40/169; 64/1697. p(i,j) = p2(1p)i+j8. c = 1/8; EX = 09. (12x2+6x)/7; 15/56; 0.8625; 5/7; 8/710. 1/2; 1 ea11. 0.145812. 39.3e513. 1/6; 1/215. /416. n(1/2)n117. 1/3 18. 7/919. 1/221. 2/5; 2/522.?; 1/323. 1/2; 2/3; 1/20; 1/1825. e1/i! 28. 1/2et; 1 3e229. 0.032630. 0.3372; 0.206131. 0.0829; 0.
13、376632. e2; 1 3e235. 5/13; 8/1336. 1/6; 5/6; 1/4; 3/441. (y + 1)2xex(y+1); xexy; ex 42. 1/2+3y/(4x)y3/(4x3)46. (12d/L)347. 0.7929748. 1e5a; (1ea)5 52. r/53. r56. (a) u/(v + 1)2 ?A?3 ? 7 ? 1. 52.5/122. 324; 199.63. 1/2; 1/4; 04. 1/6; 1/4; 1/25. 3/26. 357. 0.9; 4.9; 4.28. (1(1p)N)/p10. 0.6; 011. 2(n1)
14、p(1p)12. (3n2n)/(4n2); 3n2/(4n 2)14. m/(1 p)15. 1/218. 421. 0.9301; 87.575522. 14.723. 147/11026. n/(n + 1); 1/(n + 1)29. 437/35; 12; 4; 123/3531. 175/633. 14 34. 20/19; 360/36135. 21.2; 18.929; 49.21436. n/3637. 038. 1/841. 6; 112/3342. 100/19; 16 200/6137; 10/19; 3240/613745. 1/2; 047. 1/(n 1)48.
15、6; 7; 5.819249. 6.0650. 2y251. y3/453. 1254. 856. N(1e10/N)57. 12.563. 96/14565. 5.1666. 21867. x1 + (2p 1)2n69. 1/2; 1/16; 2/81 70. 1/2; 1/372. 1/i; i(i + 1)1; 73. ; 1 + 2;?279. 0.176; 0.141 ? 8 ? 1. ? 19/202. 15/17; ? 3/4; ? 103. ? 34. ? 4/3; 0.84285. 0.14166. 0.9431 7. 0.30858. 0.69329. (327)210.
16、 11711. ? 0.05713. 0.0162; 0.0003; 0.2514; 0.251414. n ? 2316. 0.013; 0.018; 0.69118. ? 0.223. 0.769; 0.357; 0.4267; 0.1093; 0.112 184 ? 9 ? 1. 1/9; 5/93. 0.9735; 0.9098; 0.7358; 0.557810. (b)1/614. 2.585; 0.5417; 3.1267 15. 5.5098 ?B? ? 1 ? 1.(a) C,D,E,F?4?4!?.?,?A,B ?5? ?C,D,E,F?,?2?,? ? A,B?AB?BA?
