Va to`plamlarning birlashmasini toping.; b c ; d

16. A={matematika} B={informatika} AUB=?
A){m,a,t,e,I,k,n,f,o,r}
B){m,a,t,i,k};
C){e,};
D){f,o,r,n};
17. 2-tartibli determinant qiymatini hicoblang.
|3 -2|
|4 6| =?
A)10 B)12 C)26 D)18
18. Nuqtalar orasidagi macofani toping.
A(1:3) B(4:3)
A)18 B)10 C)3 D)2
19. Aylana tenglamacini toping.
A)x2-y2=r2; B)x2̸a2+y2/b2=1; C)x2+y2=1; D)x2/a2-y2/b2=1.
20. A(2:-5)va B(-4:3) nuqtalardan o’tuvchi to’g’ri chiziq qayci choraklarda yotadi.
A)I;II;III B)I;III;IV C)II,III,IV D)I;II;IV
21. 3x+2y=7
4x-5y=40 tenglamalar sistemasini yeching.
A)(5:-4) B)(-4:5); C)(-5:4); D)(4:-5);
22. Ushbu 2sin3x funksiya uchun boshlang’ich funksiyaning umumiy ko’rinishini toping.
A)-2/3cos3x+C B)2/3cos3x+C; C)2/3sin3x+C; D)3/2sin2x+C;
23. |1 2 5|
|3 -4 7|
|-3 12 -15| determinantni hisoblang.
A)142; B)76; C)72; D)144.
24. OACB tog’ri to’rtburchakning OA va OB tomonlariga I va j birlik vektorlar qo’yilgan.Agar OA ning uzunligi 4 ga teng bo’lsa OC vector uzunligini toping?
A)3i-4j; B)4j-3i; C)3j+4i; D)3i.
25. Fokuslari OX o’qida bo’lgan giperbolaning haqiqiy o’qini uzunligi 8ga teng bo’lsa va u (8:6) nuqtadan o’tsa,bu giperbolaning tenglamasini tuzing.
A)x2/64+y2/16=1; B)x2/16-y2/12=1 C)x2/144-y2/36=1; D)x2/16+y2/36=1;
26. 2x-y=5
3x+2y=4 (x;y) sonlar jufti sistemaning yechimi bo’lsa,x-y ni toping.
A)1; B)-1; C)3; D) 0.
27. | a -1|
|a a| determinantning qiymatini toping.
A)a; B) a; C)a-1; D) 2a.
28. Agar f(x)=1/3x3-16x bo’lsa f ‘(4) ni toping.
A)1; B) 2; C) 3; D) 0.
29. M nuqta BC ning o’rtasi,N nuqta AC ning o’rtasi bo’lsin,OA=3 va OB=4 bo’lganda OM vektorni aniqlang.
A)0,5; B)-0,5; C)5; D)5,5.
30. A(4:0); B(7:4);C(-4:6) nuqtalardan o’tuvchi shaklning perimetrini toping.
A)5+5 5; B)15+5 5 C)10+5 5; D) 15;