10- sinf matematika. IV chora

8. Tenglamani yeching: х³+3х²+2х²+3х-9=0 А) 1;-3 В) 1; 3 С) 2 D) -1; 3

9. ABC uchburchakning B va C burchaklari bissektrisalari 128⁰ burchak ostida kesishadi. A burchakning qiymatini toping.

A) 76⁰ B) 128⁰ C) 52⁰ D) 104⁰

10. Arifmetik progresiyada a₁=2 ; d=4 bo’lsa a₅=?

А) 20 В) 18 С) 5 D) 4

11. 54 sonini 2; 3: 4 sonlariga teskari proporsional bo’laklarga ajrating.

А) 22; 18; 12 В) 23; 17; 12 С) 24; 18; 12 D) 24; 15; 13

12. Funksiyaning aniqlanish sohasini toping: А) (2; +∞) В) (0;2) С) (-∞;2) D) [2;+∞]

13. Tenglamani yeching: 2010x²-2012x+2=0

A) 1; B) -1; C) 1; - D) -1;

14. Ifodaning qiymatini toping: х²у+ху² , bunda х+у=2 va ху=1