§. Natural va butun sonlar

11 - §. Tenglamalar sistemasi

1. sistema nechta yechimga ega?

A)0 B)1 C)2 D) cheksiz ko’p

2. sistemadan x+y+z ning qiymatini toping.

A)3 B)5 C)6 D) 0

3. sistamaning (x; y) juftlikdanechtayechimimavjud?

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

4. sistema uchun x < y < z shartbajarilsa, x + y + z ifodaningqiymatini toping.

A) 5 B)6 C)7 D)9

5. agarsistamaning (x;y)juftlikdagiyechimlarinidekartkoordinatasidaginuqtalar deb farazqilsak, bunuqtalarorasidagimasofani toping.

A) B)3 C) D)

6. sistemani nechta yechimini bor.

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

7. sistemani yechimlarini koordinata tekisligida nuqta deb faraz qilib, bu nuqtalar orasidagi masofani toping.

A) B) C)9 D)10

8. sistemadan x+y-z ning qiymatini toping.

A) 8 B)4 C)0 D)12

9. sistemadan x+y-2z ning qiymatini toping.

A) 8 B)4 C)0 D)2