46. A(0;0), B(1;0) va C

MATEMATIKA
46. A(0;0), B(1;0) va C( nuqtalardan o‘tuvchi parabola va absissalar o‘qi bilan chegaralangan soha yuzini toping.
A) 1 B) 0,(3) C) 0,(6) D) 1,(3)
47. ABCD kvadratning tomonlarida P,Q,R va S nuqtalar kvadratning mos ravishda AB, BC, CD va DA tomonlaridan 5 cm va 3 cm li kesmalarga ajratsa, PQRS kvadratning yuzasini hisoblang.
A) 30 B) 32 C) 34 D) 38
48. bo’lsa ,k ni top?
A)8 B)6 C)5 D)7
49. Tenglamani yeching:
=
A) B ) C) D)
50. log₂²x+2 3log₂x tengsizlikni yeching ?
A) B)
C) ) D) )
51. y=0,8x-1, y=0, x=0, to’g’ri chiziqlar bilan chegaralangan soha yuzini toping?
A) 1 B)0,8 C)1,2 D)0,625
52. funksiya grafigiga o‘tkazilgan urinma (-2;0) nuqtadan o‘tsa, urinma tenglamasini aniqlang.
A )3x+4y=-6 B)3x-4y=-6 C)-3x+4y=6 D)3x+4y=6
53. Agar k>0 , b>0 bo’lsa , y=kx+b funksiyaning grafigi qaysi choraklardan o’tadi?
A) I,II va IV B) I, II vaIII C)II,III vaIV D)I va III
54. y=kx²-6 funksiya grafigi (-3;12) nuqtadan o‘tsa, k ni toping. A) 3 B) – 3 C) – 2 D) 2
55. ifodaning maksimum qiymatini toping.
A) 72,25 B) 72 C) 0,5 D) cheksiz katta
56. y= funksiyaning eng katta qiymatini toping?
A) 6,5 B)4 C)6 D)5
57. (sinx –cosx)(1+cosx)=3sin²x tenglamaning
[-3 kesmaga tegishli ildizlari nechta?
A) 3 B) 4 C) 5 D) 2
58. ABC uchburchakda AB va BC tomonlardan mos ravishda D va E nuqtalar olindi .Bunda AC=CE=12, DE=4
= bo’lsa ,BE ni uzunligini toping?
A) 6 B) 4 C) 5 D) 8
59. To’plamlarning qaysi biri cheksiz?
a) {x|-2020
b) {x|-2
c) {x|
d) {x|
A) b va c B) b va d C) a va d D) a va c
60. y=2x+5 to`g`ri chiziq bilan OX o’qining musbat yo’alishi hosil qilgan burchakning sinusini toping?
A) 2 B) C) D)
61. Parallelogramm tomonlari 10 va 16, o’tmas burchagi 150 ga teng . Barcha burchak bissektrisalari o’zaro kesishib to’g’ri to’rtburchak hosil bo’lgan. Shu to’g’ri to’rtburchakning yuzini toping ?
A)8 B)9 C)10 D)18
62. funksiya berilgan bo`lsa, funksiyani toping ?
A) y= B) y=10x+7 C) ) y= D) y=
63. y=5x+12 funksiyani absissa o’qiga nisbatan simmetrik funksiyani toping ?
A)y-12=5x B) y+5x =12 C)y=-5x-12 D) 12x+5
64. Uchburchakning ichki burchaklari 4, 5 va 9 sonlariga praporsional va katta tomoni 15 ga teng. Uchburchakning katta tomoniga tushirilgan mediananing uzunligini toping.
A) 7,5 B) 30 C) 22,5 D) 15
65. Birinchi odam qutida qancha pul bo`lsa shuncha pu qo`shib 20 so`m olib ketdi. Ikkinchi odam ham qutida qancha pul bo`lsa shuncha pul qo`shib 20 so`m oldi. Uchinchi odam ham qutida qancha pul bo`lsa shuncha pul qo`shib 20 so`m olganda qutida pul tugadi. Dastlab qutida qancha pul bo`lgan.
A) 15 so`m B) 30 so`m 50 tiyin
C) 30 so`m D) 17 so`m 50 tiyin
66. Qavariq muntazam ko’pburchakning ichki burchaklari va uchta tashqi burchaklari yig’indisi 21π/2 ga teng. Qavariq ko’pburchakning tomonlari sonini toping.
A) 21 B) 10 C) 11 D) 12
67. ni 8 ga bo’lgandagi qoldiqni toping?
A)7 B)1 C)5 D)0
68. a=(10-0,1)², b=10²-0,1², c=10²-0.1 sonlarni taqqoslang.
A) c>b>a B)a>b>c
C)b>c>a D) a>c>b
69. funksiyaning eng kichik qiymatini toping
A) 2 B) -2 C) 4 D) -4
70. 6; 4;2;0;-2;….ketma ketlikning -240 dan katta hadlari nechta ?
A)120 B)121 C)122 D)123
71. Muntazam uchburchakli piramidanning balandligi 8ga apofemasi 10 ga teng bo’lsa, piramidaning asosining yuzining yuzini toping ?
A) B) C) D)
72. aniq integralni hisoblang ?
A) ln B) ln C) ln D) ln
73. Aylanada 6 ta nuqta berilgan. Shu 6 ta nuqtadan nechta uchburchak yasash mumkun?
A)6 B)18 C)20 D)120
74. y=sin²(5x²-7) funksiyani hosilasini toping ?
A) 20x sin(5x²-7) B) 10x cos²(5x²-7)
A) 20x sin(10x²-14) D) 10x sin(10x²-14)
75. f(2x-3)= bo’lsa, ni toping? ( funksiya ning teskarisi)
A)4 B)3,5 C)5 D)3,25