O’zbekiston aloqa va axborotlashtirish agentligi toshkent axborot texnologiyalari universiteti samarqand filiali
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oliy matematikadan misol va masalalar toplami algebra va analitik geometriya limit uzluksizlik hosila integral. 1 qism.
29.a) 0 0 1 in s i s co ; b) 3 4 3 4 2 3 2 1 in s s co i ;c) 0 0 2 1 2 1 in s s co ; d) 3 5 3 5 2 3 2 1 in s i s co i ; e) 2 3 2 3 in s s co i . 30. a) 0 0 230 230 3 5 in s i s co ; b) 20 29 20 29 5 2 in s i s co in s . 53 32. a) 3 1 2 9 i ; b) 12 3 2 ; c) 64; d) 2, agar n – juft, 2, agar n –toq; e) 4 4 1 1 4 in s i s co s co ; f) 2 2 2 1 4 in s i s co s co ; g) 5 3 32 5 s ico . 36. a) 5 0 12 1 4 12 1 4 k k in s i k s co ; b) 9 0 30 1 6 30 1 6 ( k k in s i k s co ; с) 7 0 32 1 8 32 1 8 2 k k in s i k s co . 37. a) 2 3 2 1 , 1 i ; b) i , 1 ; c) 2 3 1 ; 2 3 1 , 1 i i ; d) i i i - , 2 1 2 3 - , 2 1 2 3 ; e) i i 1 - ; 1 ; f) c см 6 1 2 ; g) i i i 1 2 , 1 2 , 2 , 2 ; h) i i i 3 2 3 , 3 2 3 , 3 ; i) 3 1 , 3 - , 3 1 , 3 i i i i ; j) i i i 3 3 , 3 i 3 - , 3 3 , 3 3 ; k) 3 2 3 2 2 6 1 , 1 4 2 1 , 3 2 3 2 2 2 1 6 3 6 i i i ; l) i i i 1 , 3 2 3 2 2 2 1 - , 3 2 3 2 2 2 1 ; m) i i 2 , 3 ; n) i i 3 , 3 2 3 ; o) 2 3 2 3 , 2 3 2 3 i i ; p) i i 3 3 , 3 3 1 . 38. a) ; 15 13 15 13 2 ; 15 7 15 7 2 ; 15 15 2 5 5 5 in s i s co in s i s co in s i s co 54 3 5 3 5 2 ; 5 19 5 19 2 5 5 in s i s co in s i s co b) i i i i 3 2i, - , 3 - , 3 - 2i, , 3 . 39. i 2 3 ; 10- amaliy mashg’ulot. SONLAR KETMA-KETLIGI VA UNING LIMITI Quyidagi ketma-ketliklarning dastlabki beshta hadini yozing: 1. 1 2 ) 1 ( 2 n x n n . 2. ) ) 1 ( 3 3 ( n n n x . 3. 2 3 3 4 n n x n . 4. n x n n 2 3 arcsin ) 1 ( . 5. 2 cos n x n . 6. n n x ) 1 ( 2 . Quyidagi ketma-ketliklarning umumiy hadini yozing. 7. . ,... 5 1 , 4 1 , 3 1 , 2 1 8. . .... , 4 , 0 , 4 , 0 9 . ,... 0 , 7 , 0 , 5 , 0 , 3 , 0 , 1 10. . ,... 7 8 , 6 5 , 3 4 , 2 11. . ,... 9 11 , 7 9 , 5 7 , 3 5 , 3 Quyida berilgan } { n x ketma-ketliklarni chegaralanganlikka tekshiring. 12. n n 40 3 . 13. . 7 6 5 n n 14. 2 2 4 3 4 n n . 15. 2 2 3 2 5 n n . 16. . ) 1 ( ) 1 ( 2 n n 17. n n n ] ) 1 ( 1 [ ) 1 ( 1 . 18. . 5 2 n Quyidagi ketma-ketliklarning chegaralanganligini isbotlang. 19. . 3 3 4 2 2 n n 20. . 2 3 ) 1 ( 2 n n n 21. . ) 2 ( 6 5 2 2 n n n 22. . ) 1 ( ) 1 ( 3 4 2 3 5 n n n 23. . 3 2 2 n n 24. . 3 sin 2 2 n n Quyida berilgan } { n x ketma-ketliklarning cheksiz kichik ketma-ketlik ekanligini ta’rif bo’yicha ko’rsating. 25. . 3 n x n 26. . ) 1 ( 1 n x n n 27. n n n x 3 ) 1 ( 1 . 55 28. 2 cos 1 n n x n . 29. n x n 1 . 30. 1 2 2 n x n . Quyida berilgan } { n x ketma-ketliklarning cheksiz katta ketma-ketlik ekanligini ta’rif bo’yicha ko’rsating: 31. . n x n 32. n x n 3 4 . 33. . 2 n n x 34. n x n ln . 35. ) ( / 1 N p n x p n Ketma-ketlik limiti ta’rifidan foydalanib, quyidagi tengliklarni isbotlang. 36. . 1 5 4 3 4 lim n n n 37. 3 5 4 3 2 5 lim n n n . 38. . 1 1 2 3 lim 2 2 n n n n 39. 8 5 7 8 4 5 lim 2 2 n n n . 40. 1 lim 2 n n n n . 41. . 9 5 9 7 1 5 lim n n n 42. Quyida berilgan } { n x ketma-ketliklarning yaqinlashuvchi ekanligini isbotlang: 1) ; ) 1 ( 3 n x n n 2) ; 1 n n x n 3) ); 0 ( 2 a x n n 4) ; ! 1 n n n x 43. Quyida berilgan } { n x ketma-ketliklarning uzoqlashuvchi ekanligini isbotlang. 1) n n n x 2 ) 1 ( . 2) n n x n ) 1 ( . 3) . 10 2 n n x n 4) n x n n 1 ) 1 ( . 44. a soni } { n x ketma-ketliklarning limiti emasligini ta’rif yordamida ko’rsating. 1) 0 , 2 2 ) 1 ( a x n n . 2) 1 1 2 2 a n n x n . 3) 1 , ) 1 ( a n x n n . 4) 2 1 , 3 cos a n x n . Limitlarni toping 56 45. 2 3 1 .... 12 1 6 1 lim 2 n n n . 46. ) 1 3 ( ) 2 3 ( 1 .... 7 4 1 4 1 1 lim n n n . 47. ) 1 4 ( ) 3 4 ( 1 .... 9 5 1 5 1 1 lim n n n . 48. ) 3 2 ( ) 1 2 ( ) 1 2 ( 1 .... 7 5 3 1 5 3 1 1 lim n n n n . n a - ketma-ketlik arifmetik progressiya bo’lib, uning ayirmasi 0 d va barcha xadlari 0 n a ) ( N n bo’lsin. Limitlarni toping. 49. 1 3 2 2 1 1 .... 1 1 lim n n n a a a a a a . 50. 2 1 4 3 2 3 2 1 1 .... 1 1 lim n n n n a a a a a a a a a . 51. 3 2 1 5 4 3 2 4 3 2 1 1 .... 1 1 lim n n n n n a a a a a a a a a a a a . 52. n n n n n 2 2 2 4 lim 2 . 53. n n n n n 1 7 7 lim 2 2 2 . 54. 4 4 3 3 1 1 lim n n n n n . 55. 1 2 lim 4 3 n n n n n n . 56. n n n n n 3 3 3 2 lim . 57. ) 1 ( lim 3 2 n n n n n n n . Quyidagi limitlarni toping: 58. . , , 1 lim N q p m p q n n 59. n n n n 3 3 1 3 lim . 60. n n n n 5 2 lim . 61. 2 1 lim 2 2 n n n n . 62. N k n k n n , 1 1 lim . 63. n n n 1 1 ln lim . 64. Kuyida berilgan n x ketma-ketliklarni Koshi kriteriysidan foydalanib, yaqinlashuvchi ekanligini isbotlang. 57 1) . , 2 cos .... 3 3 cos 3 2 cos 3 cos 3 2 R a na a a a x n n 2) ! 1 .... ! 3 1 ! 2 1 1 n x n . 3) , .... 2 2 1 n n n q a q a q a x bunda , 1 q N n uchun . , const C C a n Download 1.03 Mb. Do'stlaringiz bilan baham: |
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