sinf agar va bo‘lsa, ning qiymatini toping. A b c d agar arifmetik progressiyada, bo‘lsa, uning dastlabki o‘n ikki hadi yig‘indisini toping. A b c d agar geometrik progressiyada, va bo‘lsa, uning hadlari soni ni toping

9- SINF

1. 
   Agar va bo‘lsa, ning qiymatini toping.
   A) B) C) D)
   
2. 
   Agar arifmetik progressiyada , bo‘lsa, uning dastlabki o‘n ikki hadi yig‘indisini toping.
   A) B) C) D)
   
3. 
   Agar geometrik progressiyada , va bo‘lsa, uning hadlari soni ni toping.
   A) 5 B) 6 C) 8 D) 7
   
4. 
   Agar yig‘indining qo‘shiluvchilari arifmetik progressiyaning ketma-ket hadlari bo‘lsa, shu yig‘indini toping.
   A) B) C) D)
   

5. Agar va bo‘lsa, ning qiymatini toping.
A) B) C) D)-
6. Ifodani soddalashtiring:
A) 1 B) C) D) tgx
7. ni hisoblang.
A) - B) -1 C) 0.5 D)
8. Hisoblang:
A) - B) C) D) 1
9. Ifodani soddalashtiring:
A) tg B) -1 C) D) 1
10. Arifmetik progressiyada bo‘lsa, ni toping.
A) 20 B) 22 C) 23 D) 21
11. bo‘lsa, ni toping.
A) B) C) D)
12. G‘o‘la shaklidagi to‘sinlar ustma-ust taxlangan. Birinchi taxlamda 10 ta, ikkinchisida 9 ta, va x.k., oxirgi taxlamda 1 ta to‘sin bor. Taxlamda nechta to‘sin bor?

1. 
   53 B) 54 C) 55 D) 56
   

13. Quyidagi mulohazalardan qaysilari to‘g‘ri?

1. 
   Diametri D ga teng bo‘lgan doiraning yuzi ga teng.
   
2. 
   Har qanday to‘rtburchakka ichki aylana ham, tashqi aylana ham chizish mumkin.
   
3. 
   Muntazam n burchakning har bir burchagi ga teng.
   
4. 
   Agar muntazam uchburchakka ichki hamda tashqi aylana chizilgan bo‘lsa, u holda bo‘ladi (bunda R – tashqi chizilgan aylana, r – ichki chizilgan aylana radiusi).
   

A) 1; 4 B) 2; 3 C) 2; 4 D) 1; 3
14. Quyidagi mulohazalardan qaysilari to‘g‘ri?

1. 
   Tekislikning berilgan O nuqtasidan berilgan R masofadan katta bo‘lmagan masofada yotuvchi barcha nuqtalaridan tashkil topgan shaklga doira deb ataladi.
   
2. 
   Agar r radiusli aylanaga tashqi chizilgan ko‘pburchakning yuzi S , perimetri P bo‘lsa, bo‘ladi.
   
3. 
   Hamma tomonlari teng bo‘lgan qavariq ko‘pburchakka muntazam ko‘pburchak deyiladi.
   
4. 
   Har qanday uchburchakka ichki aylana ham, tashqi aylana ham chizish mumkin.
   

1. 
   1; 3 B) 1; 4 C) 1; 2 D) 3; 4
   

15. Uchburchak uchlaridan unga ichki chizilgan aylananing urinish nuqtalarigacha bo‘lgan masofalar mos ravishda va ga teng. Shu uchburchakning perimetrini toping. A) B) C) D)
16. Muntazam yigirmaburchakning yuzi 16 ga, unga ichki chizilgan doiraning yuzi ga teng. Yigirmaburchakning perimetrini toping.
A) B) C) D)