Tenglamalar sistemasini yeching: a b c d e 3: x=a a ning qanday qiymatida yechimi bo`ladi. A b c d e 5

A) B) C) D) E)
_{12. Hisoblang:}
A) B)
C) D) E)
13. ifodan n ning nechta butun qiymatida natural son bo`ladi?
A) 2 B) 4 C) 3 D) 5 E) 0
14. ni hisoblang.
A) B) C) 1 D) 0 E)
15. ayniyat bo`lsa, ni toping?
A) -1 B) 6 C) 1 D) -6 E) 5
16.
ni soddalashtiring? A) B)
C) D)
17.
ni hisoblang?
A) B) C) D) E) 0
18.
ni soddalashtiring?
A) B) 0 C)
D) E) 2
19. yig`indida har bir qo`shiluvchining ikkinchi ko`paytuvchisi bittadan kamaytirilsa, bu yig`indi qanchaga kamayadi?
A) 160 B) 210 C) 540 D) 820 E) 410
20. Agar bo`lsa, qanday qiymatlarni qabul qiladi?
A) 0 va 1 B) 0 va 3 C) faqat 0
D) faqat 1 E) faqat 3
21. Agar bo`lsa, ni qiymatini toping?
A) 1 B) -1/3 C) 1/3 D) 3 E) 0
22. m ning qanday qiymatlarida tenglamaning ildizlari cheksiz ko`p bo`ladi?
A) m=1 B) m=0 C) m=-1 D) m= 1 E)
23. m ning qanday qiymatlarida tenglamaning ildizlaridan biri boshqasidan uch marta kichik bo`ladi?
A) 2 B) 4 C) 3 D) 4 E) 2
24. bo`lsa, ni soddalashtiring?
A) 2y B) 2x C) 2z D) 2y-2z E) 2x-2z
25. Uchta sonning nisbati 1:2:6 ga, ularning yig`indisi 459 ga teng. Shu sonlarning eng katta va eng kichigini ayirmasini toping?