Namangan viloyat xalq ta’limi boshqarmasi Viloyat metodika markazi
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10-sinf 2-variant 1. Teng yonli trapetsiyaning diagonali uni ikkita teng yonli uchburchakka bo'ladi. Trapetsiya burchaklarini toping. A) 72
°, 108° B) 45°, 135° C) 80°, 100° D) 82°, 98° E) 60°, 120° 2. x ning qanday qiymatlarida ctgx x tgx x + + cos sin
ifodaning ishorasi musbat bo'ladi? A) π/2+πk, πk, k ∈ Z B) (-∞;∞) C) (0;∞) D) (-∞;0) E) πk, k ∈ Z 3. ABC muntazam uchburchakning ichidan ixtiyoriy D nuqta olinib, undan BC, CA va AB tomonlarga mos ravishda PD, PE va PF perpendikulyar tushurilgan.
+ + + + ni hisoblang. A) 1: 3 B) 1:1 C) 1:2 D) 2:1 E) 3 : 1 4. a ning qanday qiymatlarida 2 2
3 2 2 < + − − +
−
tengsizlik x ning barcha qiymatlarida o'rinli bo'ladi? A) -1 < a < 2 B) -3 < a < 2 C) -2 < a < 1 D) a > 0 E) a < 0 5. ABCD to'g'ri to'rtburchakda AD = 12, CD =9. D-diagonallar kesishish nuqtasi. → →
→ + − − OB OA AD CD ni toping. A) 9 B) 4,5 C) 6 D) 15 E) 12 6. Hisoblang: 5,468 2 + 10,64 - 4,532 2
A) 15 B) 18 C) 20 D) 25 E) 16 7. Tengsizlikni yeching: (x - 1)-14 + 5x - x 2 = 0 A) [1: 7] U –2 B) [-2: 7] C) [-2: 1) U (1: 7] D) [1: +oo) E) (-oo: 1] 8. ⎩ ⎨ ⎧ − = − − = 4 11 2 x y x y tenglamalar sistemasi nechta yechimga ega? A) ∅ B) 1 C) 2 D) 3 E) 4 9. n ning nechta natural qiymatlarida 1 4 3 2 − + −
n n ifodaning qiymati butun son bo'ladi? A) 4 B) 1 C) 2 D) 3 E) 5 10. tg α = -3 - 2 shartni qanoatlantiruvchi o'tmas burchakni toping. A) 165 o B) 150 o C) 135 o D) 120 o E) 157,5 o
1 va y
2 sonlari y 2 - by - b - 1 = 0 tenglamaning ildizlari bo'lsa, b ning qanday qiymatida y 1 2 + y 2 2 ning qiymati eng kichik bo'ladi? A) 1,2 B) 0,85 C) 1 D) 1,5 E) 2 12. )
( ) 4 )( 2 ( + − − = x x x x y
funksiyaning aniqlanish sohasini toping. A) (-1; 0) U [2; 4] B) [-1; 0] U (2; 4) C) (-1; 4] U [2; 4) D) (- ∞, -1) U [0; 2] U [4; ∞) E) (-∞, -1] U [0; 2) U (4; ∞) 13. Soddalashtiring: ) 3 ( 2 3 3 2 ... 3 2 2 − + − − + + + +
a a n na a a a
A) n/a B) a/n C) a/2 D) na/2 E) 2/na 14. Cheksiz kamayuvchi geometrik progressiyaning yig'indisini toping: 1/2 - 1/3 + 1/4 - 1/9 + 1/8 - 1/27 + ... A) 0,2 B) 1/2 C) 3/4 D) 1,2 E) 2,5 15. Hisoblang: tg22,5 ° + tg -1
° A) –2 B) -2 -1 C) 4-2 D) 4 -1 -2 E) 2-2 16. Hisoblang: 1 - sin 6 22,5 ° + cos 6 22,5 ° A) (-3 - 1)/2 B) (-6 + 5)/4 C) (10 + 3-2)/8 D) (16 + 7-2)/16 E) (10 + 2-3)/5 17. Agar sinα - (1 - 2sin 2 (α/2)) = 1/3 bo'lsa, cos(π/4 - α) - sin(3π /4 - α) ni hisoblang. A) 5/6 B) 3/4 C) 4/5 D) -3/4 E) -3/2 18. Uchburchakning balandligi 12 ga teng bo'lib, 21 ga teng tomonini 5:16 kabi nisbatda bo'ladi. Uchburchakning perimetrini toping. A) 54 B) 62 C) 56 D) 108 E) 48 19. Uchburchakning asosiga parallel to'g'ri chiziq uning yuzini teng ikkiga bo'ladi. Asosidan hisoblanganda yon tomonlari qanday nisbatda bo'linadi?
A) ( 2 - 1):1 B) 1:1 C) 1/2 :1 D) ( 3 - 1):1 E) (2 2 -1):1
20. Parallelogramning o'tkir burchagi 30 ° dan kichik emas, 45° dan katta emas. Tomonlariga o'tkazilgan balandliklarining ko'paytmasi 10 ga teng. Parallelogram yuzining eng katta qiymatini toping. A) 20 B) 10 3 C) 10 2 D) 5 3 E) 20 2
21. Tenglamani yeching: 6 6 1 4 : ) 9 2 3 ( = + x
A) 9 7 22 B) 9 7 21 C) 9 2 22 D) 9 2 23 E) 6 1 21 22. 2x 2 - 5x + 12 tengsizlikning butun yechimlari yig'indisini toping. A) 4 B) 9 C) 7 D) 5 E) 6 23. Agar sin (x + π/6) + sin (x - π/6) = 2 3 cosx bo'lsa, tgx ni toping. A) –1 B) 1 C) 0 D) 2 E) 1/2 24. n ning qanday qiymatlarida nx - x 2 = 0 tenglama yechimga ega? A) n > 0 B) n < 0 C) n = 1 D) n = 0 E) barcha n larda 25. Son oxirida nechta nol qatnashsadi: p = 30! + 70! ? A) 5 B) 7 C) 14 D) 16 E) 24 26. Barcha ikki honali musbat sonlarning yig'indisini toping. A) 4900 B) 4905 C) 4950 D) 4500 E) 5005 27. Agar 8 x = 16
y+1 va 2x = 5y -2 bo'lsa, x+y ni toping. A) –1 B) 2 C) 3 D) 1 E) 6 28. Rombning perimetri 16 ga, ichki chizilgan aylananing radiusi 1 ga teng. Rombning o'tmas burchagini toping. A) 110
о B) 120 о C) 135 о D) 145 о E) 150 о
29. Qo'shma burchaklarning biri ikkinchisidan 3 marta katta. Shu bur- chaklardan kichigini toping. A) 75
о B) 60 о C) 45 о D) 40 о E) 30 о
30. Silindr yon sirtining yuzi 24 π, hajmi esa 48π. Silindr balandligini toping.
A) 8 B) 6 C) 4 D) 3 E) 2 31. Ifodaning qiymatini toping: 24 - 27 - 25 - 24 + 18 - 36 - 16 - 36 - 21 - 5 A) 0 B) 15 C) 115 D) 1 E) 45 32. Quyidagi sonlarni kamayish tartibida yozing:
3 10, b = log 5 18, c = log 6 5.
A) b > c > a B) c > b > a C) a > b > c D) a > c > b E) b > a > c 33. Quyidagi tenglamalar sistemasidan x 2 + y 2 ni toping: ⎩ ⎨
− = − = + 5 3 23 2 5 x y y x
A) 16 B) 9 C) 25 D) 10 E) 36 34. e -x = x - 5 tenglamanig nechta ildizi bor? A) 1 B) 2 C) 3 D) - E) aniqlab bo'lmaydi 35. Agar a 2 +b 2 =8, ab=5 bo'lsa, a 4 + a 2 b 2 + b 4 ni qiymatini toping. A) 49 B) 39 C) 36 D) 89 E) 69 36. Hisoblang: 2 2
2 12 17 − − + A) 1 B) 2 C) 2 2 D) 3 E) 2 - 1
37. k ning nechta butun qiymatida y = 2 -kx va y = kx 2 - 2kx + 3 funksiyalar grafiklari kesishmaydi? A) 2 B) 3 C) 4 D) 5 E) to'g'ri javob yo'q 38. y = -x 2
+ 2x + 3 parabola uchi koordinatalini toping. A) (-1; 3) B) (-1; 2) C) (1; 3) D) (1; 4) E) (1; -2) 39. Bir nuqtadan tekislikka uzunliklari 23 va 33 og'ma tushirilgan. Agar o'g'malarning tekislikka proyeksiyalari -2:2-3 nisbatda bo'lsa, nuqtadan tekislikkacha bo'lgan masofani toping. A) 9 B) 11 C) 6 5 D) 12 E) 417 40. Doiraga tashqi chizilgan teng yonli trapetsiyaning asoslari 18 va 8. Doira diametrini toping. A) 10 B) 11 C) 12 D) 12,4 E) 14
3-variant 1. ABC uchburchakning AB va BC tomonlariga tushirilgan balandlik bu tomonlardan kichik emas. Uchburchakning burchaklarini toping. A) 60
°, 60°, 60° B) 30°, 30°, 120° C) 30°, 60°, 90° D) 90
°, 45°, 45° E) 45°, 60°, 75° 2. n ning qanday qiymatlarida cosnx - sinx ifodaning davri 3 π ga teng bo'ladi? A) -1, -3, -5, -15 B) 1, 3, 5, 15 C) n = 5k D) n = -5k E) 1, 2, 3, 4 3. Ushbu x 2 + 1 = log 3 (x + 2) + 3x tenglamani nechta ildizi bor? A) 2 B) 1 C) 3 D) ∅ E) aniqlab bo'lmaydi 4. Ushbu cosxcos2xcos4x=1 tenglama [-2 π; 2π] kesmada nechta ildizga ega?
A) 1 B) 2 C) 3 D) 4 E) ∅ 5. ABCDEF muntazam oltiburchak yuzasi 216 ga teng. ACF uchburchak yuzasini toping. A) 36 B) 90 C) 72 D) 18 E) 54 6. Soddalashtiring: 6 6 4 6 2 5 6 2 5 3 16 28 + + − − + A) 3 + 3 B) 3 C) 2 + 2 D) 2 3 E) 1 + 3 7. Hisoblang: 1/sin15 o + 3 /cos15 o
A) 2 /4 B) 3 /2 C) 4 3 D) 1/2 E) 3 /4 8. Hisoblang: ( 4 ) 2 / 1 ( : ) 8 5 , 4 2 5 , 0 ( 2 / 1 − − + +
A) –12 B) –4 C) 2 D) –2 E) 3 9. Soddalashtiring: 1 /(2(1 + a )) + 2 / (2(1 - a )) - (a 2 + 2) / (1 - a 3 ) A) 1 B) –a C) -1/(a 2 + a + 1) D) 1- a E) (1 - a )/(1 + a ) 10.
− − + + − = 1 ln 3 12 ) ( 2 funksiyaning aniqlanish sohasini toping. A) [-2: 2] B) [-2: 1) U (1: 2] C) [-2: -1) U (-1: 2] D) [-2: -1) U (-1: 0) E) [0: 2] 11. k ning qanday qiymatlarida kx 2 - (k - 7)x + 9 =0 tenglama ikkita bir xil manfiy ildizga ega bo'ladi? A) 49; 1 B) 1 C) -49; -1 D) 49 E) -1 12. t ning qanday qiymatlarida tx 2 - 6x - 1 < 0 tengsizlik x ning barcha qiymatlarida o'rinli? A) t < -12 B) t < -9 C) t < -13 D) t < -8 E) t < -7 13. Agar S n arifmetik progressiyaning dastlabki n ta hadining yig'indisi bo'lsa, S 5 - 3S 4 + 3S
3 - S
2 ni toping. A) 0 B) -2a 1
C)
2a 1 D)
3a 1 E) -3a 1
kamayuvchi geometrik progressiya berilgan. Ularning yig'indisi mos ravishda S 1 va S
2 ga teng. Shu progressiyaning istalgan bittasining hadlari kvadratlaridan tuzilgan cheksiz kamayuvchi geometrik progressiya hadlari yi'gindisini toping. A) S 1
2 B) S 1 +S
C) |S 1 -S 2 | D) (S 1 +S
) 2 E) S 1 2 +S 2 2
15. sin α-cosα=m tenglik o'rinli bo'lmaydigan m ning qiymatlarini toping. A) [-31; 0] U (2; 31) B) (- ∞;-1] U [1; ∞) C) [-∞; 0] U [2; ∞) D) [-100; 0] U (0; 100) E) [-1; 0,5] U (2;14)
16. Agar (tg α + 3 )(tgβ + 3 ) = 4 va α, β ∈(0; π/2) bo'lsa, 2 9
⎠ ⎞ ⎜ ⎝ ⎛ +
− π β α
ni hisoblang. A) 0,25 B) 0,5 C) 0,36 D) 0,64 E) 0,16 17. cos55 ° - cos65° - cos175° ni hisoblang. A) -10/8 B) - 7 /8 C) -3/8 D) - 2 - 3 /8 E) - 2 + 3 /8
18. Uchburchakning tomonlari 5; 7; 10 ga teng. Uchburchakning uchidan boshlab hisoblanganda bissektrisalar kesishgan nuqtasi katta burchakning bissektrisasini qanday nisbatda bo'ladi? A) 2:1 B) 3:2 C) 4:3 D) 6:5 E) 5:4 19. Yuzi 9 3 ga teng bo'lgan muntazam uchburchakdan yuzi eng katta bo'lgan kvadrat qirqib olindi. Kvadratning perimetri nimaga teng? A) 18 3 -12 B) 24-12 3 C) 64 3 -96 D) 54-16 3 E) 48 3 -72 20. Asoslari BC va AD bo'lgan ABCD trapetsiyaning diagonallari O nuqtada kesishadi. Agar DO =4, BO =2 va BOC uchburchakning yuzi 6 ga teng bo'lsa, trapetsiya yuzini toping. A) 42 B) 48 C) 52 D) 54 E) 60 21. Hisoblang: 2 1
: 4 1 12 15 2 : 7 1 1 4 3 − −
A) 2 1 9 B) 4 1 8 C) 2 1 10 D) 4 3 11 E) 5 1 10 22. Hisoblang : 2 2
2 2 3 − − + A) 4
2 B) 0 C) 2 D) 2 2 E) 6 23. Hisoblang : 3,(3) - 0,3 + 0,(2) + 0,(4) A) 2,(3) B) 0,(6) C) 1,(4) D) 1,(6) E) 2,(6) 24. x 7
A) 4 B) 3 C) 2 D) 1 E) yechimi yo'q 25. Agar tg( α+β) = 5, tg(α-β) = 3 bo'lsa, tg2β ni toping. A) 15 B) 8 C) 1/8 D) 1 E) 2 26. Hisoblang: 1 - sin92 ° - sin2° + 1/2 sin4° A) 0,5 B) 0 C) 1 D) -0,5 E) -1 27. Geometrik progressiyada b 1 + b
9 = 5 и b
1 2 + b 9 2 = 17. b 4 - b
6 = ?
A) 6 B) 4 C) 3 D) 2 E) 1 28. Kub sirtining yuzi 24 bo'lsa, uning hajmini toping. A) 64 B) 16 C) 27 D) 2 2 E) 8 29. Diagonallari soni 20 ta bo'lgan ko'pburchakning nechta tomoni bor?
A) 6 B) 7 C) 8 D) 9 E) 10 30. Yon tomoni 2 2 , uchidagi burchagi 60 о bo'lgan teng yonli uchburchakka tashqi chizilgan aylananing radiusini toping. A) 6 B) 2 C) 4 D) 4 3 E) 3 3 31. Biror p sonini 3 ga bo'linganda 1 qoldiq, 4 ga bo'linganda 3 qoldiq qolsa, p ni 12 ga bo'lgandagi qoldiqni toping. A) 9 B) 7 C) 5 D) 3 E) 1 32. log
2 2 x - 4log 2 x - 1 = 0 tenglamaning ildizlari ko'paytmasini toping. A) 8 B) 4 C) 16 D) 1/8 E) 1/16 33. Quyidagi funksiyaning aniqlanish sohasiga nechta butun son kiradi: y = 2 7 − − x
A) 7 B) 10 C) 13 D) 15 E) 14 34. Agar ishchilar oyligi 20%ga oshsa, keyin yana 20%ga oshsa, hammasi bo'lib necha foizga oshgan? A) 40 B) 50 C) 42 D) 44 E) 46 35. a ning qanday qiymatlarida ⎩ ⎨
= + = + a y ax ay x 2 1 sistema yechimga ega emas?
A) 1 B) 1; -1 C) 1; 2; -1 D) 0; 1; -1 E) a ∈R
36. 98 2004
- 97 ayirmaning oxirgi raqamini toping. A) 1 B) 3 C) 5 D) 7 E) 9 37. Agar |a| + b 2 + c 2 = 2b - 4c - 5 bo'lsa, 2a + b + c ni toping. A) 1 B) –1 C) 4 D) 2 E) -3 38. Arifmetik progressiyada a 3 = 5 va a
2 + a
6 + a
7 = 0. a
1 ni toping. A) 10 B) 15 C) 8 D) -2,5 E) -10 39. x
2 + y
2 + 4x +6y - 3 = 0 tenglama bilan berilgan aylananing radiusini toping. A) 5 B) 4 C) 6 D) 3 E) 3,5 40. Agar α - to'qqizburchakning ichki burchaklari yig'indisi bo'lsa, cosα ni toping. A) 1 B) 1/2 C) 0 D) – 1/2 E) -1
10-sinf 4-variant 1. Hisoblang: 4 4
5 2 5 3 4 − + −
A) 1 + 4 5 B) 1 C) 2 D) 1 + 5 E) 5 2. Agar A, B, C - uchburchakning burchaklari bo'lsa, a C B A = 2 sin 2 sin 2 sin
shartni qanoatlantiruvchi a ning eng kichik qiymatini toping. A) 1/8 B) 3/2 C) 3/4 D) 1/2 E) 1/16 3. sin47 o + sin61
o - sin11
o - sin25
o ifodaning qiymatini toping. A) 1 B) 1/2 C) cos7 o D) 0,5cos7 o E)
sin7
o
4. k ning qanday qiymatlarida |ln(x + 15)| = - (x + k) 2 tenglama yechimga ega bo'ladi? A) –15 B) 14 C) 15 D) 10 E) -e 5. Hisoblang: ) 2 1 2 8 , 1 5 2 1 5 , 2 /( ) 5 , 28 5 , 35 900
( − + − − − A) 2/5 B) 3/7 C) 5/7 D) 7/10 E) 3/10 6. -4x + 12 - -x tengsizlik qaysi oraliqlarda yechimga ega emas? A) (-
∞; -3) U (-2: ∞) B) [-3; -2] C) (-∞; 0] D) [-3; 0) E) (-∞; -3] 7. Tengsizlikni yeching: |x 2 - 6| < 1 A) (- 7 ; 7 ) B) (- 7 ; - 5 ) U ( 5 ; 7 ) C) [- 7 ; -1) U (1; 7 ) D) (1; 3 ) E) (- 3 ; -1) ∠A = 75
o , ∠C = 60 o va BC =
2 + 3 . AB = ? A) 3 B) 2 C) 3 3 D) 3 E) 2 + 3
9. ⎪⎩ ⎪ ⎨ ⎧ = + = + 5 16 2 2 y x y x tenglamalar sistemasi nechta yechimga ega? A) 10 B) 2 C) 3 D) ∅ E) 8 10. Hisoblang: arctg(1/2) - arctg(1/3) A)
π/4 B) π/4+πn C) -π/4+πn D) -π/4 E) 3π /4 11. Agar a 2 + 3ab +b 2 =44 va a 2 + ab + b 2 = 28 bo'lsa, a 2 -ab + b
2 ning
qiymatini toping. A) 14 B) 18 C) 12 D) 19 E) 16 12. Tengsizlikni yeching: |x + 1| > 2|x + 2| A) (-2; -1) B) [-3; -1] C) (-3; -5/3) D) (-3; 0) E) (-3; -2) 13. Hisoblang: ...
5 2 5 2 3 3 3 3
A) 17 B) 12 C) 14 D) 41 E) 20 14. y = - x 2 - 6x + 11 funksiyaning qiymatlari sohasini toping. A) [0; ∞) B) [0; 11] C) [-2; ∞] D) (2; ∞) E) (-∞;∞) 15. Agar cos37 ° = a bo'lsa, sin16° ni toping. A) a 2 – 1 B) a – 1 C) 2a 2 – 1 D) 1 - 2a 2 E)
aniqlab bo'lmaydi 16. sin
6 α + cos
6 α + 3sin
2 α - cos
2 α ni soddalashtiring. A) –1 B) 0 C) 1 D) 2 E) 4 17. Agar sin2x = 2/5 bo'lsa, sin 8 x + cos
8 x ni toping. A) 16/25 B) 398/625 C) 527/625 D) 256/625 E) 8/25 18. Kateti 2 ga teng bo'lgan to'g'riburchakli teng yonli uchburchakning medianalari kesishgan nuqtasi bilan issektrisalar kesishgan nuqtalari orasi- dagi masofani toping. A) ( 2
2 - 3 )/3 C) (2 3 -3)/6 D) (3 2
19. Kvadrat hosil qilish uchun o'lchovlari 8 va 20 bo'lgan to'g'ri to'tburchakdan eng kamida qancha olish mumkin? A) 10 B) 12 C) 6 D) 8 E) 15 20.
137 = → a ,
20 = → → + b a va
18 = → → −b a bo'lsa |b| ni toping. A) 7 2
2 D) 12 E) 15 21. Tenglamani ildizini toping: 0,7(6y - 5) = 0,4(y - 3) - 1,16 A) - 0,3 B) 0,25 C) - 0,2 D) 0,3 E) 0,75 22. [-2 π; 2π] oraliqda (cos 2 x - cosx) / sinx = 0 tenglama nechta yechimga ega? A) 6 B) 3 C) 2 D) 4 E) 1 23. Tenglamani ildizini toping: 25 ... = x x x x
A) 25 B) 5 5 C) 5 D) 5 E) ildizi yo'q 24. Ifodani soddalashtiring: α α α α α 2 sin
2 1 cos 3 sin
5 sin
2 sin
2 − + − +
A) 2cos α B) sinα C) 0,5sinα D) 2sinα E) tgα 25. Tengsizlikni yeching: log 0,5
(x - 2) > log 0,5
(3 - x) A) x < 2,5 B) 2 < x < 3 C) 2 < x < 2,5 D) x > 2,5 E) 2 ≤ x≤ 2,5
26. Qanday sonning 7 foizi 126 dan ikki marta kichik? A) 3600 B) 900 C) 256 D) 145 E) 600 27. Hisoblang: sin1920 o
A) 0 B) 3 /2 C) 0,5 D) 2 /2 E) 1 28. Doiraning yuzi 96% ga oshishi uchun uning radiusini necha foizga oshirish kerak? A) 4 B) 62 C) 40 D) 140 E) 196 29. To'g'ri burchakli uchburchakning kateti 8 ga, shu katetning gipotenuzaga proyeksiyasi 6,4 ga teng bo'lsa, uchburchak yuzini toping. A) 25,6 B) 48 C) 51,2 D) 24 E) 18 30. Tomonlari arifmetik progressiyani tashkil etuvchi to'g'ri burchakli uchburchakning o'tkir burchaklaridan kichigini toping. A) arctg1,5 B) 35 o C) arctg 0,75 D) 30 o E) 40 o
o ni hisoblang. A) 1+ 3 B) 2+ 3 C) 2 - 3 D) (1+ 2 )/2 E) 2/ 3 32. Quyidagi ifodaning eng katta qiymatini toping: 4b - a 2 + 2ab - 2b 2 . A) 1 B) 2 C) 6 D) 2 E) 8 33. Geometrik progressiyada b 1 + b 9 = 5 va b
1 2 + b 9 2 = 17. b 4 - b 6 - ?
A) 4 B) 3 C) 2 D) 10 E) 6 34. |1 - |1 - x|| = 0,5 tenglamaning yechimlari yig'indisini toping. A) 1 B) 2,5 C) 4,5 D) 4 E) 2 35. x
2 - 5
x - 5
2+x < 0 tengsizlikning eng katta butun yechimini toping. A) –5 B) 5 C) 2 D) 4 E) 6 36. Ifodani soddalashtiring: α α α sin
1 cos
− −
A) tg
α B) ctgα C) -ctgα D) -tgα E) -1 37. t ning qanday qiymatlarida x 2 + 4x + 3 + t < 0 tengsizlik yechimga ega emas? A) (1; +oo) B) 0 C) (-oo; 1] D) [1; +oo) E) (-oo; 1) 38. A(2; 4), B(3;6) va C(6; 14) nuqtalar berilgan. |
→ → + | ni
toping. A) 13
2 B)14 C)13 D)12 E)10 39.
va
b r birlik vektorlari orasidagi burchak 60 о bo'lsa, | b a r r + | ni toping. A) 3 B) 1 C) 2 D) 2 E) 3 40. x + 3y - 12 = 0 to'g'ri chiziq va koordinata o'qlari kesmalari bilan chegaralangan uchburchakning yuzini toping. A) 12 B) 24 C) 36 D) 48 E) 64
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