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a) 4a – c – d; b) 2a + b – c – d; c) -5a – 5b – 5c – 5d. 6
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oliy matematikadan misol va masalalar toplami algebra va analitik geometriya limit uzluksizlik hosila integral. 1 qism.
;5. a) 4a – c – d; b) 2a + b – c – d; c) -5a – 5b – 5c – 5d. 6. 0. 8. a) –252; b) –3; c) –3; d) –65; e) –1455; f) 8; g) 900; h)-74; i) 54; j) 2: k) 0; l) 394; . 9. a) 216; b) 1; c) –106; d) 120; e) –11; f) –2. 10. a) –12; b)16; c) 1; d) –400: e) –36. 2-amaliy mashg’ulot. MATRITSALAR VA ULAR USTIDA AMALLAR. TESKARI MATRITSA, MATRITSA RANGI. 1. Matritsalarning chiziqli kombinatsiyasi topilsin: a) ; 1 0 1 0 4 2 3 2 3 2 1 2 1 3 b) ; 6 5 0 3 1 2 2 2 c) ; 3 7 2 1 1 7 24 5 11 6 5 1 15 7 8 1 2 12 d) 1 3 2 4 4 3 2 1 ; e) ; 1 1 1 1 1 5 5 1 f) . 1 1 1 1 0 1 1 1 0 1 1 0 0 1 0 1 1 1 0 0 2 2. Qanday shartlarda quyidagi ayniyatlar o’rinli bo’ladi: a) ; A B B A b) C B A C B A ) ( ) ( ; c) A A ) ( ) ( ; d) ; ) ( B A B A e) A A A ) ( . 3. Matritsalarning ko’paytmasini hisoblang: a) ; 1 3 4 0 3 2 b) 0 3 2 1 3 4 ; c) 9 5 5 3 1 1 1 1 ; d) 1 1 1 1 0 1 ; g) 1 1 1 1 1 2 1 3 ; h) 5 4 3 4 3 2 3 2 1 1 1 1 ; e) 1 2 0 0 1 0 2 3 0 3 4 1 0 0 1 0 ; f) 0 0 1 0 2 3 3 2 1 2 4 5 1 1 6 0 3 4 3 3 ; i) 1 1 1 1 1 1 0 0 0 1 0 0 1 1 0 1 1 1 1 1 ; 4. Ko’paytmaning mavjudligini tekshiring va mavjud bo’lganda hisoblang: a) 1 2 2 1 4 3 2 1 ; b) ; 1 2 2 1 4 2 c) 4 2 1 2 2 1 ; d) 13 12 1 1 28523 28423 13647 13547 13 12 . 5. Hisoblang: a) ; 1 1 1 1 n b) n 0 0 0 0 0 0 1 1 1 ; c) ; 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 3 13 d) ; 1 1 1 1 n e) ; 1 0 1 1 n f) n 0 1 0 1 . 6. Ayniyatlarning to’g’riligini tekshiring: a) T T A A ; b) ; T T T A B AB c) T T T T A B C ABC ; d) T T T B A B A . 7. f(A) ni hisoblang, agar a) ; 1 1 0 1 , 1 2 ) ( 2 A x x x f b) ; 1 0 1 1 , 1 2 ) ( 2 A x x x f c) ; 3 1 2 0 , 2 3 ) ( 2 A x x x f d) ; 1 1 , ) ( ) ( 2 A x x f e) ; 21 26 6 17 21 5 1 1 1 , 1 ) ( 2 A x x x f 8. Agar AB=BA shart bajarilsa, quyidagi tenglamalarning to’g’riligini isbotlang: a) ; 2 ) ( 2 2 2 B AB A B A b) ; ) )( ( 2 2 B A B A B A c) ); ... )( ( 1 2 2 1 n n n n n n B AB B A A B A B A d) . ... ! 2 ) 1 ( ) ( 2 2 1 n n n n n B B A n n nA A B A Agar BA AB bo’lsa, yuqoridagi tengliklar to’g’ri bo’ladimi? 9. A matritsa bilan o’rin almashinuvchi bo’lgan hamma matritsalar topilsin, agar: a) ; 5 0 0 0 2 0 0 0 1 A b) ; 1 3 1 2 A c) ; 1 0 1 1 A d) ; 1 0 0 0 1 1 0 0 0 1 1 0 0 0 1 1 А e) ; 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 А bunda j i bo’lsa, j i a a . 14 10. 2 5 3 7 3 0 0 2 7 5 3 2 12 35 6 17 tenglikdan foydalanib, 5 12 35 6 17 ni hisoblang. 11. 4 5 2 1 1 1 1 2 0 1 0 0 0 2 0 0 0 1 2 4 3 1 2 2 1 3 1 3 4 4 2 3 2 3 3 4 tenglikdan foydalanib, 6 3 4 4 2 3 2 3 3 4 ni hisoblang. 12. d c b a A matritsa 0 ) ( 2 bc ad x d a x tenglamani qanoatlantirishini isbotlang. 13. Teskari matritsani topish formulasidan foydalanib quyidagi matritsalar uchun teskari matritsani toping: a) 4 3 2 1 ; b) 7 5 4 3 ; c) d c b a ; d) cos sin sin cos ; e) 3 5 1 4 9 3 3 7 2 ; f) 1 2 2 2 1 2 2 2 1 ; g) 2 2 1 2 1 2 1 2 2 ; h) 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ; i) 6 2 0 1 1 1 1 1 2 1 3 2 4 3 2 1 . 14. Quyidagi ayniyatlar o’rinli bo’ladimi? a) T T A A 1 1 ; b) 1 1 1 A A ; c) 1 1 1 A B AB ; d) 1 1 1 1 A B C ABC ; 15. Berilgan matritsani elementar matritsalar ko’paytmasiga yoying: 15 a) 1 1 1 1 ; b) 3 1 2 0 ; c) 3 1 1 2 1 1 0 0 1 . 16. Matritsaviy tenglamalar sistemasini yeching: a) 1 0 0 1 3 2 1 0 1 1 Y X Y X ; b) 0 2 2 0 2 4 0 1 1 0 2 Y X Y X . 17. Elementar almashtirishlar yordamida berilgan matritsa uchun teskari matritsani toping: a) 0 0 1 0 1 0 0 0 0 1 0 0 0 0 0 1 ; b) 0 0 1 0 1 0 0 0 0 0 0 1 0 1 0 0 ; c) 0 1 0 0 0 0 2 0 1 0 0 0 0 0 0 2 ; d) 0 0 3 0 0 0 0 1 0 2 0 0 1 0 0 0 ; e) 1 2 2 2 2 1 2 2 2 2 1 2 2 2 2 1 ; f) 0 1 1 1 1 0 1 1 1 1 0 1 1 1 1 0 ; 18. Quyidagi tenglamalardan X matritsani toping: a) 1 1 1 2 3 1 5 2 X ; b) 1 1 1 2 3 1 5 2 X ; c) 0 1 0 1 1 0 0 0 1 5 2 0 2 5 2 0 2 1 X ; d) 1 8 5 2 5 5 2 2 1 2 1 2 1 2 2 X ; 19. Xoshiyalovchi minor usulidan foydalanib matritsa rangini toping: a) 0 34 4 2 1 3 5 1 2 1 5 3 3 4 2 ; b) 2 8 1 1 2 7 1 5 2 4 4 2 3 1 2 ; 16 c) 5 7 4 1 1 3 2 1 2 4 1 3 1 1 3 2 ; d) 2 7 12 1 2 8 9 1 4 1 3 2 2 3 2 1 ; e) 1 9 7 7 7 1 1 5 4 3 1 2 1 5 3 1 ; f) 4 1 1 5 7 0 7 5 3 1 3 4 2 3 5 2 5 3 1 3 ; g) 4 4 5 11 0 7 1 4 7 3 3 2 1 1 2 4 3 2 5 1 2 5 1 4 3 ; h) 17 6 10 5 10 16 11 9 1 2 11 10 6 1 2 2 3 1 1 2 5 1 3 2 4 . 20. Elementar almashtirishlar yordami bilan quyidagi matritsalarning rangini toping: a) 30 28 53 18 120 15 27 94 121 14 25 93 31 27 51 17 Download 1.03 Mb. Do'stlaringiz bilan baham: |
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