§. Natural va butun sonlar

18 - §. Irratsional tenglamalar.

18-Mashq.
1. tenglamaning ildizlari ko’paytmasini toping.

A) 0B)– 441 C)42 D)21

2. = tenglama nechta haqiqiy ildizga ega?

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

3. 5 tenglamaning haqiqiy ildizlari nechta?

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

4. tenglamaning ildizlari yig’indisini toping.

A) 8 B)15 C)2 D)3

5. tenglamaning nechta butun ildizi bor.

A)1 B)2 C)3 D)4

6. tenglamaning nechta butun ildizi bor.

A)3 B)2 C)4 D)1

7. =1 tenglamaning ildizlari yig’indisini toping.

A)2 B)3 C)4 D)cheksiz kattalikka ega

8. =3 tenglamaning ildizlari yig’indisini toping.

A)2 B)15 C)4 D)cheksiz kattalikka ega

9. sistema nechta yechimga ega?

A) 3 B)2 C)1 D)cheksiz ko’p

10. sistemadan x+y ning eng katta qiymatini toping.

A) 5 B) C)3 D)2

11. sistemadan x ning qiymatini toping.