1. Barcha uch xonali sonlar ichida 44 ga qoldiqsiz bo`linadiganlari nechta ?

18. Ifodani soddalashtiring.

A) -1 B C) D) 0 E) 1

19. Ifodani soddalashtiring.



A) 2 B) C) 1 D) E)

20. Agar bo`lsa, ni hisoblang.

A) 0 B) 1 C) -1 D) 2 E) -2

21. Ikki ishchi birgalikda ishlab, ma`lum ishni 12kunda tamomlaydi. Agar ishchilarning bittasi shu ishning yarmini bajargandan keyin, ikkinchi ishchi nqolgan yarmini bajarsa, shu ishni 25kunda tamomlashi mumkin. Ishchilardan biri boshqasiga qaraganda necha marta tez ishlaydi?

A) 1,2 B) 1,5 C) 1,6 D) 1,8 E) 2

22. Tengsizlikni yeching.

A) (-3;1) B) C) D) (-3; 0)

23. Tengsizlikni yeching.



A) B)

C) D)

E)

24. Soddalashtiring.

A) -1 B) 1 C) 0 D) 3 E) 2

25. Ushbu

tengsizlikning [0;2π] oraliqdagi eng kata va eng kichik yechimlari yig`indisini toping.

A) B) π C) D) E)