Diskret tuzilmalardan 1-oraliq nazorat variant
№ 5
1. А={1,2,3,4,5,6} to`plam elementlaridan “o`zaro tub bo`lish” binar munosabati asosida tuzilgan qism to`plamni toping.
A) {(1,2), (2,5), (4,6)} B) {(1,1), (1,2), (3,6), (5,6)} C) {(2,1), (4,4)} D) {(3,6)} E) {(2,3),(5,3)}
2. To`plamni barcha elementlarini keltiring: А = {n | 12 soni 2n ga bo`linadi}
A) {1,2,3,4,6,12} B) {12,14,36,…} C) {1,2,3,6} D) {2,12} E) ∅
3. А={1, 2} va В={a,b,c} to`plamlar Dekart ko`paytmasidan munosabatlar aniqlangan. Bulardan qaysi biri in`yektiv funksiya bo`ladi: f: A→B ?
A) {(1,b),(2,a),(1,c)} B) {(1,a)} C) {(1,a), (2,a)} D) {(1,a),(2,c)} E) {(1,a),(2,b),(1,c),(2,c)}
4. 5 turdagi marka va 7 turdagi konvertlar bor. Xat jo`natish uchun marka va konvertni nechta ususlda tanlash mumkin?
A) 35 B) 12 C) 7 D) 11 E) 49
5. 1 dan 1050 gacha sonlar orasida 3, 5 yoki 7 ga bo`linadigan nechta natural son bor?
A) 191 B) 570 C) 488 D) 736 E) 105
6. Barcha elementlarini no’merlash mumkin bo’lgan cheksiz to’plam
cheksiz to`plam B) bo`sh to`plam C) chekli to`plam D) sanoqli to`plam
7. Uchta to’plam berilgan bo’lsin A ={1;2;3}; B = {4;5;6}; C = {7;8;9}. Quydagi to’plam neshta elementdan iborat bo’ladi D = A U B U C?
A) 9 B) 8 C) 6 D) 4 E) 10
8. A = {2;4;7;20} to’plamdagi R = {(x, y): x, y∈A, y bo’linadi x va x ≤ 4} binar munosabat nimaga teng.
A) {(1,1), (1,2), (3,6), (5,6)} B) {(1,2), (2,5), (4,2)} C) {1, 2, 3, 4} D) {(2;2);(2;4);(2;20);(4;20);(4,4)}
9. 1,2,3,4,5 raqamlari berilgan. Bu sonlarni takrorlamasdan nechta usul bilan 3 xonali son tuzish mumkin? A) 4 B) 6 C) 8 D) 10 E) 12
10. 30 o`quvchisi bo`lgan sinfdan boshliq, yordamchi va kotib necha xil saylanishi mumkin.
A) 24360 B) 24560 C) 24000 D) 56000 E) 499
11. ni hisoblang.
A) 40 B) 84 C) 35 D) 18 E) 12
12. Hisoblang.
A) 6 B) 5 C) 20 D) 9; 4 E) 4; 5
13. (a+b)10 binom yoyilmasining 3-hadi oldidagi koeffitsiyentni toping.
A) 42 B) 46 C) 56 D) 45 E) 54
14. Tenglamani yeching.
A) 12;11 B) 11; 10 C) 6; 11 D) 5 ; 12 E) 12;6
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