Va to`plamlarning birlashmasini toping.; b c ; d
– quyidagi matritsaning turini aniqlang. A)
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yan.test1
14. – quyidagi matritsaning turini aniqlang.
A) dioganal matritsa B) kvadrat matritsa C) birlik matritsa D) maxsus matritsa 15. 2x-4y+3z=1 x-2y+4z=3 3x-y+5z=2 tenglamalar sistemasidan y ni toping. A)0 B)1 C)-1 D)2 16. .ABC teng yonli uchburchakda M nuqta AC asosining o’rtasi.Agar AB=5 va BM=4 bo’lsa,|MB-MC+BA|vektorlarning qiymatini toping. A)6 B)3 C)9 D)5 17. .Agar xy=4,yz=7 va xz=28 (y>0) bo’lsa,xyz ni toping. A)-28 B)28 C)27 D)56 18. Agar X²-5xy+y²=-47 Xy=21 bo’lsa|x+y|+|x-y| ning qiymatini toping. A)8 B)10 C)12 D)14 19.Agar ab=18,bc=25 va ac=8 bo’lsa,v(abc) nimaga teng. A)2v15 B)15v2 C)6v5 D)8v3 20.f(x)=x-1-ctg²x funksiyaning boshlang’ich funksiyani toping. A)x²/2-ctgx+C B)x²/2+ctgx+C C)x²/2-tgx+C D)x²/2+tgx+C 21.|3 -2| |4 6| bo’lgan determinantni yechimi a bo’lsa,3a ni hisoblang. A)78 B)76 C)36 D)24 22.a ⃗ va b ⃗ nokollinear vektorlar berilgan.|a ⃗ |=|b ⃗ |=2 bo’lsa,(a ⃗+b ⃗ )bilan (a ⃗-b ⃗ ) qanday burchak tashkil etadi. A)45° B)90° C)75° D)60° 23. Agar a ⃗(1;-1;3)va b ⃗(4;3;0) bo’lsa a ⃗ ning qanday qiymatida 2a ⃗+αb ⃗ va b ⃗-a ⃗ vektorlar perpendikulyar bo’ladi. A)5/6 B)1 C) 2,1 D) -7/11 24. Agar f(x)=x3+5x2+4x+2 bo’lsa, f ‘ (x)=y(1) tenglamaning eng kichik ildizini toping. A)-6 B)-2 C)-4 D)-1 23. OACB to’g’ri to’rtburchakning OA va OB tomonlariga I va j birlik vektorlar qo’yilgan .Agar OA ning uzunligi 3 ga va OB ning uzunligi 4 ga teng bo’lsa,CO vektorni I va j orqali ifodalang. A)3i+4j B)-3i-4j C)3i-4j D)4j-3i 24.Ushbu 3sin2x funksiya uchun boshlang’ich funksiyaning umumiy ko’rinishini ko’rsating. A)-2/3cos2x+C B)-3/2cos2x+C C)3/2sin2x+C D)-3/2sin2x+C 25.Giperbola tenglamasi tog’ri keltirilgan javobni ko’rsating. A)x2/a2+y2/b2=1 B)x2/a2-y2/b2=1 C)x2+y2=r2 D)x2-y2=r2 26.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} 27. 2-tartibli determinant qiymatinin hisoblang. |3 -2| |4 6| =? A)10 B)12 C)26 D)18 28. Aylana tenglamasini toping. A)x2-y2=r2 B)x2̸a2+y2/b2=1 C)x2+y2=1 D)x2/a2-y2/b2=1 29.5x+2y=4 7x+4y=8 tenglamalar sistemasini x*y dagi qiymatini toping. A)2 B)3 C)0 D)4 30.Fokuslari OX o’qida bo’lgan giperbolaning haqiqiy o’qini uzunligi 16 ga teng bo’lsa va u (10;-3) nuqtadan o’tsa,bu giperbolaning tenglamasini tuzing. A)x2/64+y2/16=1 B)x2/16-y2/12=1 C)x2/64-y2/16=1 D)x2/16+y2/12=1 Download 242.06 Kb. Do'stlaringiz bilan baham: |
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