Algebra viii-sinf. I-chorak test. A-variant
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18.
tengsizlikning manfiy butun yechimlari yigindisini toping. #1 -9#2 -5#3 -12 #4 -6#5 -4 19.
0 tengsizlikni yeching. 20.
tengsizlikni yeching. 21. Quyidagi sonlarning qaysi jufti x+y=7 x-y= -1 tengsizliklar sistemasini qanoatlantiradi? 22. 0,2x > -1 tengsizliklar sistemasining yechimlari bo’lgan barcha butun sonlar ko’paytmasini toping. 1 3
23.
tengsizlikning manfiy butun yechimlari ko’paytmasini toping. 24.
0 tengsizlikni qanoatlantiruvchi x ning eng kichik musbat butun va eng katta manfiy butun yechimlari ko’paytmasini toping. 25. tengsizlikni butun yechimlari ko’paytmasini toping. Algebra VIII-sinf.II-chorak test.B-variant 1. - - ko’rinishidagi sonlar( bu yerda m,va n natural sonlar) … sonlar deyiladi #1 Ratsional #2 Musbat kasr #3 Manfiy kasr #4 Natural #5 Butun 2. Ifodaning son qiymatini toping: a 3 b
c 2 , bunda a= -1 , b= -1 , c= -1 #1 -36 #2 -1 #3 -144 #4 648 #5 0 3. Tenglamani yeching: x 2 -2x=0
#1 0; 2 #2 0;4 #3 Ildizi yo’q #4 0;3 #5 -4;4 4. Tenglamani yeching: x 2 -16=0
#1 0; 2 #2 0;4 #3 Ildizi yo’q #4 0;3 #5 -4;4 5. a va b sonlari orasiga >, < yoki = belgilaridan birini to’g’ri munosabat hosil bo’lishini topish sonlarni … deyiladi. #1 darajaga ko’tarish #2 ildiz chiqarish #3 taqqoslash #4 Hammasi to’g’ri #5 TJY 6. Sonlarni taqqoslang: 0,6 va #1 > #2 = #3 < #4 Taqqoslab bo’lmaydi #5 TJY 7. a>b va c<0 bo’lsa,ac va bc uchun to’g’ri tengsizlikni toping #1 ac 8. Agar 2b-3a < 3b-4a bo’lsa, u holda … bo’ladi #1 a>b #2 a
9. Agar 2b-3a > 3b-4a bo’lsa, u holda … bo’ladi #1 a>b #2 a
10. 3,25<4,25 tengsizlikni ikkala qismini -4 ga ko’paytirish natijasini toping. #1 13<17 #2 -13>-17 #3 -3 <7 #4 3<7 #5 1> 11. Agar a>b va c>d bo’lsa a+c va c+d ni taqqoslang #1 a+c v= c+d#2 a+c c+d #3 a+c < c+d #4 a+c > c+d #5 TJY 12. Tengsizliklarni qo’shing: 3x+y<2x+1 va 3y-2x<14-2x #1 x+4y< 2x-2y+15 #2 4y<2x-2y+13 #3 x+4y<15 #4 x+y<15 #5 x+y<2x-2y+15 13.
Tengsizliklarni ko’paytiring: 6
#1 28> 8 #2 25<58 #3 x 2 -4<4 #4 12< 4x 2 -1 #5 10x-15<27-36x 14. Tengsizlikni qanoatlantiruvchi eng kata butun sonni toping: x< -8 #1 -9 #2 -8 #3 -1 #4 24 #5 -20 15. Tengsizlikni qanoatlantiruvchi eng kata butun sonni toping: x< -19 #1 -9 #2 -8 #3 -1 #4 24 #5 -20 16. =0 funksiyaning ildizi qaysi javobda togri korsatilgan? #1 {0,5;3}#2 {-0,5;3} #3 x=0,5#4 x=3#5 x= -3
17.
3 1 2 4 2 3 x x tengsizlikni yeching #1 x 2 #2 x -10 #3 x -2#4 x>3 #5 togri javob keltirilmagan 18.
0 tengsizlikni yeching. #1 (- ;1)U(2; )#2 [1;2)#3 (1;2)#4 (2;+ )#5 (- ;1]U(2;+ ) 19. tengsizlikni e'ng katta va e'ng kichik butun yechimlari yigindisini toping. 20. 0< qo’sh tengsizlikni yeching 21. a ning qanday qiymatlarida ax-y=0 x+y=10 tenglamalar sistemasi yechimga ega bo’lmaydi? 22.
0,2x > -1 tengsizliklar sistemasining yechimlari bo’lgan barcha butun sonlar yigindisini modulini toping.
1 3 x
23. 0 tengsizlikni qanoatlantiruvchi x ning eng kichik musbat butun yechimini toping. 24. tengsizlikni qanoatlantiruvchi eng kata musbat butun sonni toping 25. tengsizlikning eng katta va eng kichik butun yechimlariyig’indisini toping Algebra VIII-sinf.II-chorak test.C-variant 1. - ko’rinishidagi sonlar( bu yerda m butun son va n natural son) … sonlar deyiladi #1 Ratsional #2 Musbat kasr #3 Manfiy kasr #4 Natural #5 Butun 2. Ifodaning son qiymatini toping: a 3 b
c 2 , bunda a= -1 , b= -3 , c= 4 #1 -36 #2 -1 #3 -144 #4 648 #5 0 3. Tenglamani yeching:4x- x 2 =0
#1 0; 2 #2 0;4 #3 Ildizi yo’q #4 0;3 #5 -4;4 4. Agar a-b ayirma musbat bo’lsa a son b sonidan … bo’ladi #1 katta #2 kichik #3 teng #4 Hammasi to’g’ri #5 TJY 5. Sonlarni taqqoslang: 0,5 va #1 > #2 = #3 < #4 Taqqoslab bo’lmaydi #5 TJY 6. Sonlarni taqqoslang: 0,3 va #1 > #2 = #3 < #4 Taqqoslab bo’lmaydi #5 TJY 7. a>b va c>0 bo’lsa,ac va bc uchun to’g’ri tengsizlikni toping #1 a:c 8. Agar b(2a+1) < a(2b+1) bo’lsa, u holda … bo’ladi #1 a>b #2 a
9. Agar b(2a+1) > a(2b+1) bo’lsa, u holda … bo’ladi #1 a>b #2 a
10. -12< 28 tengsizlikni ikkala qismini 4 ga bo’lish natijasini toping. #1 13<17 #2 -13>-17 #3 -3 <7 #4 3<7 #5 1> 11. Agar a>b,c>d va a>0, b>0,c>0, d>0 bo’lsa ac va bd ni taqqoslang #1 ac=bd #2 ac>bd #3 ac bd #4 ac 12. Tengsizliklarni qo’shing: 3x+2y<2x+1 va 3y-2x<14-2x #1 x+4y< 2x-2y+15 #2 4y<2x-2y+13 #3 x+4y<15 #4 x+y<15 #5 x+y<2x-2y+15
13.
#1 28> 8 #2 25<58 #3 x 2
-4<4 #4 12< 4x -1 #5 10x-15<27-36x 14. Tengsizlikni qanoatlantiruvchi eng kata butun sonni toping: x -8 #1 -9 #2 -8 #3 -1 #4 24 #5 -20 15. Quyidagi mulohazalardan qaysilari togri? #1 A)a>0 va b>0 bolsa, a+b>,a*b>0,a/b>0 boladi.#2 B)a>0 va b<0 bolsa , a*b<0, a/b<0, b/a< 0 boladi. #3 C)Ratsional son deb m/n korinishdagi songa aytiladi: bu yerda n butun,m natural#4 A va B mulohazalar togri #5 A,B va C) mulohazalar togri 16. To’g’ri tengsizlikni tanlang #1 a) 3ab-2 #5 a va b togri 17. x ning qanday qiymatlarida y= 4x-3 funksiyaning qiymati musbat boladi? #1 y>1#2 x>0 #3 x>0,75#4 x>2#5 x<0,75
18.
tengsizlikni yeching. #1 (- ;-3)U[-2;1]#2 (-2;1)#3 (- ;-3]#4 (- ;-3]U(-2;1]#5 (- ;-3)U(-2;1) 19. tengsizlikning eng katta va eng kichik butun yechimlari ayirmasini toping 20. 10(ax-1)=2a-5x-9 tenglama a ning qanday qiymatlarida yagona yechimga ega? 21. -4<2-4x< -2 qo’sh tengsizlikni yeching.
22.
tengsizlikning musbat butun yechimlari yigindisini toping.
23. 0 tengsizlikni qanoatlantiruvchi x ning eng katta manfiy butun yechimini toping. 24.
tengsizlikni butun yechimlari yigindisini toping. 25. Tenglamani yeching:
Algebra VIII-sinf.II chorak testi.D- variant 1. Agar ratsional sonni maxraji … sonining natural darajasidan iborat bo’lsa bu sonni o’nli kasr shaklida tasvirlash mumkin. #1 5 #2 12 #3 2 #4 1 #5 10 2. Ifodaning son qiymatini toping: a 3 b 2 c 2 , bunda a= 2 , b= -3 , c= 3 #1 -36 #2 -1 #3 -144 #4 648 #5 0 3. Tenglamani yeching: x 2 +4=0 #1 0; 2 #2 0;4 #3 Ildizi yo’q #4 0;3 #5 -4;4 4. Agar a-b ayirma manfiy bo’lsa a son b sonidan … bo’ladi #1 katta #2 kichik #3 teng #4 Hammasi to’g’ri #5 TJY 5. Sonlarni taqqoslang: 0,5 va #1 > #2 = #3 < #4 Taqqoslab bo’lmaydi #5 TJY 6. a>b, c-ixtiyoriy son bo’lsa. a+c va b+c uchun to’g’ri tengsizlikni toping #1 a+c=b+c #2 a+c b+c #3 a+c< b+c #4 a+c b+c #5 a+c>b+c 7. a>b va c<0 bo’lsa,ac va bc uchun to’g’ri tengsizlikni toping #1 a:c 8. Agar b(1-3a) > a(1-3b) bo’lsa, u holda … bo’ladi #1 a>b #2 a
9. Agar b(1-3a) < a(1-3b) bo’lsa, u holda … bo’ladi #1 a>b #2 a
10. -12>-28 tengsizlikni ikkala qismini -4 ga bo’lish natijasini toping. #1 13<17 #2 -13>-17 #3 -3 <7 #4 3<7 #5 1> 11. Tengsizliklarni qo’shing: 3x+y<2x+1 va 3y-2x<14-2y #1 x+4y< 2x-2y+15 #2 4y<2x-2y+13 #3 x+4y<15 #4 x+y<15 #5 x+y<2x-2y+15 12. Tengsizliklarni qo’shing: 3x+y<2x+1 va y-2x<14-2y #1 x+4y< 2x-2y+15 #2 4y<2x-2y+13 #3 x+4y<15 #4 x+y<15 #5 x+y<2x-2y+15 13. Tengsizliklarni ko’paytiring: 4<2x+1 va 3<2x-1 #1 28> 8 #2 25<58 #3 x 2 -4<4 #4 12< 4x 2 -1 #5 10x-15<27-36x 14. Tengsizlikni qanoatlantiruvchi eng kata butun sonni toping: x< 0 #1 -9 #2 -8 #3 -1 #4 24 #5 -20 15. Ifodaning son qiymatini toping a*b 2 *c 3 , bynda a= -1,b= -3,c=2 #1 -24#2 -36#3 36#4 24 #5 -72 16. 3x+y <2x+1 va 3y-2x<14-2a tengsizliklarni qoshishdan hosil boladigan tengsizlik qaysi javobda togri korsatilgan? #1 4y+x<4ax+15#2 4y+x<2x-2a+15#3 4y+x<2x+2a+15#4 4ay+x>4x-15#5 5y+x<4y+x 17. 0,2x > -1 tengsizliklar sistemasining yechimlari bo’lgan barcha butun sonlarni toping. 1 3
#1 -4 #2 -3 va -4#3 -3 dan kichik sonlar#4 -4 dan kichik sonlar#5 -3 dan katta sonlar 18. tengsizlikni yeching #1 (1;2]#2 [1;2)#3 [1;2]#4 (- ;1)#5 (- ;1]
19. tengsizlikni yeching 20. y-3x= 55 5x+2y=11 , x 2 +y 2 ning qiymatini toping 21. 0,2x > -1 tengsizliklar sistemasining yechimlari bo’lgan barcha butun sonlar yig’indisini toping. 1 3
22.
tengsizlikning musbat butun yechimlari ko’paytmasini toping. 23.
0 tengsizlikni qanoatlantiruvchi x ning eng kichik musbat butun va eng katta manfiy butun yechimlari yig’indisini toping. 24. tengsizlikni e'ng katta va e'ng kichik butun yechimlari ko’paytmasini toping. 25. Tenglamani yeching:
1. a sonining arifmetik kvadrat ildizi deb, … a ga teng bo’lgan nomanfiy songa aytiladi #1 kubi #2 kvadrati #3 4-darajasi #4 ildizi #5 10-darajasi 2. Ifodani soddalashtiring: 3 80 3 45 2 20
#1 35 #2 5 #3 6 55 #4 12 5 #5 4
145
3. Ifodani soddalashtiring: 2 3 6 2 3 6
#1 2 3 #2 12( 2 3 ) #3 12 3 #4 12 2 #5 -12 2
4. Ikki sonning yig’indisi 35 ga ,ularning ayirmasi esa 31 ga teng.Shu sonlarning ko’paytmasi nechaga teng? #1 31 5
31 35 #4 6 #5 35 3
5. x 2 +4x-5=0 tenglamaning ildizlari x 1 va x
2 bo'lsa, + ning qiymatini toping #1 124#2 -125#3 130#4 5#5 -124 6. p ning qanday qiymatlarida x 2 +px+15 =0 tenglamaning ildizlaridan biri 5 ga teng bo'ladi? #1 -4#2 4#3 -2#4 2 #5 -8 7. =x+2 tenglamaning nechta ildizi bor? #1 3 #2 2 #3 1#4 ildizi yo'q#5 cheksiz ko'p 8. 5x
2 -8x+1=0 tenglamaning ildizlari yigindisini toping. #1 #2 1#3 -4 #4 #5 8 9. Tenglamani yeching: 3x 2 =48
#1 x=4 #2 x=-4 #3 x 1,2
= 4 #4 x=8 #5 x=16 10. Kvadrat tenglamani yeching: x 2 +7x+6=0
#1 x 1 =1, x 2 = -1 #2 x 1 = -6, x
2 =-1 #3 x 1 = -7, x
2 = -6 #4 x 1 = -1, x
2 = -5 #5 11. x
2 +6x+q=0 kvadrat tenglamaning x 1 va x
2 ildizlari x 2 =2x
1 shartni qanoatlantiradi.x 1 ni toping #1 8 #2 -2 #3 -4 #4 -6 #5 10 12. x
2 +px+3=0 kvadrat tenglamaning x 1 va x
2 ildizlari x 2 =3x
1 shartni qanoatlantiradi.p ni toping. #1 #2
#3 #4 10 #5 3 13. x 2
1 va x
2 ildizlari x 2 =3x
1 shartni qanoatlantiradi. Ildizlari ko’paytmasini toping #1 #2
#3 #4 10 #5 3 14. 3x 2
1 va x
2 ildizlari bo’lsa ni toping #1 - #2 17 #3 3 #4 32 #5 15. ax 2
#1 x=0 #2 x 1,2
= #3
#4 #5 x= - 16. ax 2
ko’rinishidagi kvadrat tenglama ildizlari formulasini toping #1 x=0 #2 x 1,2 =
#4 #5 x= - 17. Ildizlari -1 va 5 bo’lgan kvadrat tenglama tuzing: #1 x
2 -8x-20=0, #2 x 2 -12x+32=0 #3 x 2 -4x-5=0 #4 x 2 +7x+12=0 #5 x 2 -2x-15=0 18. Kvadrat uchhadni ko’paytuvchilarga ajrating: x 2 +4x-5 #1 (x-2)(x-3) #2 (x-1)(x+5) #3 (x-3)(x+8) #4 (x+0,5)(x-1) #5 (x+7)(x-6) 19. x
2 +5x-6=0 kvadrat tenglamani kata ildizini kichik ildiziga nisbatini toping 20. x 2
toping 21. 2x
2 +x-a=0 tenglamaning ildizlaridan biri 2 ga teng. a ni toping 22. x 2
2 =0 (q 0) tenglama ning qanday qiymatlarida tenglama bitta ildizga ega?
23. p ning qanday qiymatlarida x 2 +px+15 =0 tenglamaning ildizlaridan biri 10 ga teng bo'ladi? 24. x 2 +2x+1=0 tenglamaning ildizlari x 1 va x
2 bo'lsa - ni hisoblang 25. (x-1) 4 -5(x-1) 2 +4=0 tenglamaning ildizlari ko’paytmasini toping: Algebra VIII-sinf.III-chorak test.B-variant 1. Hisoblang: ( 2 )
27
#1 48 #2 30 #3 18 #4 9 #5 39 2. Hisoblang: 6 1
6 1 8
#1 36 32 #2 32 6 1 #3 2 6 1 #4 4 6 1 #5 5 6 5 3. Tenglamani yeching: 5 )
( 2
x
#1 x 5 #2 x 5 #3 x<5 #4 x 5
4. Hisoblang: 3 8 49
#1 7+2 6 #2 3 6 +1 #3 4 1 3
#4 3 1 3 #5 1-4 3
5. 2x 2 +x-a=0 tenglamaning ildizlaridan biri 2 ga teng. Ikkinchi ildizni toping #1 2,5#2 1,5 #3 -2,5 #4 -1,5#5 -2 6. a ning qanday qiymatlarida ax 2 -(a+1)x+2a-1=0 tenglama bitta ildizga ega bo'ladi? #1 -1; #2 0;-1 #3 1;- #4 - ;0;1#5 -1;0; 7.
tenglamaning ildizlari nechta? #1 2#2 4 #3 1 #4 3#5 0 8. x 6
3 =-64 tenglama haqiqiy ildizlari yigindisini toping. #1 5 #2 65 #3 64#4 16#5 1 9. Tenglamani yeching: x 2 =5x
#1 #2 x=2,5 #3 x=0 #4 x 1 =0, x
2 =5 #5 x=5 10. Kvadrat tenglamani yeching: x 2 +x+1=0 #1 x 1 =0, x 2 =1 #2 x 1,2 =
3 #3 #4 x 1,2 = 3 #5 x 1,2 =- 2 1
11. x 2 +6x+q=0 kvadrat tenglamaning x 1 va x
2 ildizlari x 2 =2x
1 shartni qanoatlantiradi.x 2 ni toping #1 8 #2 -2 #3 -4 #4 -6 #5 10 12. x
2 +px+3=0 kvadrat tenglamaning x 1 va x
2 ildizlari x 2 =3x
1 shartni qanoatlantiradi. x 1 ni toping #1 #2
#3 #4 10 #5 3 13. 3x 2
1 va x
2 ildizlari bo’lsa ni toping #1 - #2 17 #3 3 #4 32 #5 14. 3x 2
1 va x
2 ildizlari bo’lsa ni toping #1 - #2 17 #3 3 #4 32 #5 15. x 2
#1 x=0 #2 x 1,2
= #3
#4 #5 x= - 16. Agar x 1 va x 2 x 2 +px+q=0 tenglamaning ildizlari bo’lsa, Viyet teoremasi harfiy ifodasini toping: #1 x
1 +x 2 =p, x 1* x 2 =q #2 x 1 +x
= p, x 1* x 2 = -q #3 x 1 +x
= -p, x 1* x 2 =q #4 x
1 +x 2 = -p, x 1* x 2 = -q #1 x 1 -x
=p, x 1* x 2 =q
17. Ildizlari -4 va -3 bo’lgan kvadrat tenglama tuzing: #1 x
2 -8x-20=0, #2 x 2 -12x+32=0 #3 x 2 -4x-5=0 #4 x 2 +7x+12=0 #5 x 2 -2x-15=0 18. Kvadrat uchhadni ko’paytuvchilarga ajrating: x 2 +5x-24 #1 (x-2)(x-3) #2 (x-1)(x+5) #3 (x-3)(x+8) #4 (x+0,5)(x-1) #5 (x+7)(x-6) 19. x
2 +5x-6=0 kvadrat tenglamani ildizlari yig’indisini toping 20. x 2
21. 2x 2 +x-a=0 tenglamaning ildizlaridan biri 2 ga teng. Bu tenglamaning barcha koyeffitsiyentlari ko’paytmasini toping 22. x
2 +px+q
2 =0 (q 0) tenglama ning qanday qiymatlarida haqiqiy ikkita ildizga ega? 23. p ning qanday qiymatlarida x 2 +px+16 =0 tenglamaning ildizlaridan biri -2 ga teng bo'ladi? 24. x 2 +2x+1=0 tenglamaning ildizlari x 1 va x
2 bo'lsa - ni hisoblang 25. Kasrni qisqartiring:
Algebra VIII-sinf.III-chorak test.C-variant Download 443.61 Kb. Do'stlaringiz bilan baham: 
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