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9-sinf Matematika 4-chorak

InfoMaster

Aprel 20, 2021

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OMAD YOR BO'LSIN!

9-sinf Matematika 4-chorak

Testni Salomov Sardor tayyorladi.

1 / 25

Arifmetik progressiya $a_{12}-a_{15}$ =20 bo'lsa, $S_{26}$ ni toping?

A) 336

B) 260

C) 335

D) 337

2 / 25

Arifmetik progressiyada $a_{1}$ = $-20.7$ d=1,8 bo'lsa, qaysi nomerli haddan boshlab progressiyaning barcha hadlari musbat bo'ladi?

A) 15

B) 12

C) 13

D) 18

3 / 25

Geometrik progressiyada $b_{1}$ =2, q=3 bo'lsa, $S_{6}$ ni toping?

A) 336

B) 335

C) 337

D) 728

4 / 25

Arifmetik progressiyada d=4, $S_{50}$ =5000 bo'lsa, $a_{1}$ ni toping?

A) 1250

B) 2

C) -2

D) 100

5 / 25

Parallelogrammning tomonlari 7√3 va 6 sm. Agar uning o‘tmas burchagi 120° bo‘lsa, uning yuzini toping

A) 70 sm²

B) 63 sm²

C) 68 sm²

D) 78 sm²

6 / 25

7 ga karrali dastlabki nechta natural sonni qo'shganda 385 hosil bo'ladi?

A) 15

B) 10

C) 18

D) 13

7 / 25

701 soni 1, 8, 15, 22, progressiyaning nechanchi nomerli hadi?

A) 99

B) 102

C) 101

D) 100

8 / 25

1 va 11 sonlari orasida 99 ta shunday sonni joylashtiringki, ular bu sonlar bilan birgalikda arifmetik progressiya tashkil qilsin. Bu progressiya uchun $S_{50}$ ni toping?

A) 495/2

B) 178/3

C) 300

D) 345/2

9 / 25

Ifodani soddalashtiring:

A) 1/ctgɑ

B) √1/cosɑ

C) 2/sinɑ

D) -1/cosɑ

10 / 25

Funksiyaning aniqlanish sohasini toping:

A) x≤1

B) (-∞;∞ )

C) x≠1

D) x≥1

11 / 25

Tenglamani yeching: cos(x-π )=0

A) 3π/2+2πk

B) πk

C) 2πk

D) 3π/2

12 / 25

Ifodaning qiymatini toping sin300^°

A) 1/2

B) 2/√3

C) 0

D) -1/2

13 / 25

Poyezd har 30 m yo‘l yurganda 1 m tepaga ko‘tariladi. Temir yo‘lning gorizontga nisbatan ko‘tarilish burchagini toping

A) 2°

B) 22°

C) 30°

D) 60°

14 / 25

Rombning katta diagonali 18 sm va bir burchagi 120°. Romb yuzini toping

A) 51√5 sm²

B) 54√3 sm²

C) 54√3 sm²

D) 54√2 sm²

15 / 25

x = 41 qiymat qaysi tengsizlikning yechimi bo`ladi

A) (x-30)(x-34) < 0

B) (x +1)(x + 42) < 0

C) (x - 29)(x - 31) > 0

D) (x-7)(x-2010) > 0

16 / 25

y = 4x² +12x +9 funksiyaning o`sish oralig`ini toping

A) (-∞; 1,5)

B) (-∞; -1,5)

C) (1,5; ∞)

D) (-1,5; ∞)

17 / 25

Teng yonli trapetsiyaning ikkita burchagi ayirmasi 40⁰ ga teng. uning burchaklarini toping

A) 135°; 45°; 135°; 45°

B) 115° ; 75° ; 115° ; 75°

C) 110°; 70°; 110°; 70°

D) 140°; 40°; 140°; 40°

18 / 25

Quyidagi tengsizliklardan qaysi biri kvadrat tengsizlik ekanini toping

A) x⁴-4< 0

B) 4x -5 > 0

C) 2x³ + 3x²-4x +7 > 0

D) 41x² – 9x + 1 < 0

19 / 25

Ikkita o`xshash ABC va DEF uchburchaklar berilgan. Agar S_ABC = 75 m² ,
S_DEF = 675 m² va ABC uchburchakning bir tomoni 5 m bo`lsa, DEF uchburchakning unga mos tomonini toping

A) 15 m

B) 45 m

C) 25 m

D) 10 m

20 / 25

p ning nechta butun qiymatida
x² + px +4 = 0 tenglama haqiqiy ildizga ega emas

A) 7

B) 16

C) 9

D) 4

21 / 25

sin60^° nimaga teng