§. Natural va butun sonlar


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§. Natural va butun sonlar

- §. Modulli tenglamalar

1. tenglamaningildizlarisonini toping.

A)1 B)2 C)3 D) cheksizko’p

2. |x3─7x+6|+|x2+2x+4|=|x3─x2─9x+2|tenglama (-10;4) oraliqdanechtabutunyechimgaega.

A)7ta B)6ta C)aniqlabbo’lmaydi D)13ta

3. Tenglamani yeching. │x2─7x+1│=x2+7│x│+1

A) 0 B) (─1;1) C) D) ─1

4. Tenglamani yeching.


A) (0;3) B) {0}(2;∞) C) Ø D) (−∞;0]{3}
5. Sistema a ningqandayqiymatida 4 ta yechimgaega?

A)a=3, a=3 B) [3;3] C) (-∞;3)(3;∞) D) [3;∞)

6. Sistema a ningqandayqiymatidayechimgaegaemas?

A)a=3, a=3 B)[3;3] C)(-∞;3)(3;∞) D)[3;∞)

7. Sistema bningqandayqiymatida 4 ta yechimgaega?



A)[3;3] B) C)(-∞;3)(3;∞) D)[3;∞)

8. Sistema bningqandayqiymatida 2 ta yechimgaega?

A)[3;3] B) b=3 C)(-∞;3)(3;∞) D)b=3, b=3

9. |x2-6|x|+8|=a ushbutenglama a ningqandayqiymatida 6 ta yechimgaega?

A) (1;8) B) (0;1)C)a=1 D)(8;∞ )

14. |x2-6|x|+8|=a ushbu tenglama a ning qanda yqiymatida 4 ta yechimga ega?



A) (1;8) a=0B) (0;1)C)a=1 D)(8;∞ )

15 .|x2-3|=b-1 tenglama b ningqandayqiymatida 3 ta yechimgaega?

A)[1;4] B)(4;∞) C)b=4 D)(1;4)

16.|x2-3|=b-1 tenglama b ningqandayqiymatida 2 ta yechimgaega?

A)[1;4] B)(4;∞) {1} C)b=4 D)(1;4)

17. (x-4)3 = tenglamaning ildizlari yig’indisini toping.

A) 0 B)10 C)13 D) 24

18. (x2 +x)2 + tenglama nechta ildizga ega?

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

19. tenglamaning ildizlari sonini toping

A) 2 B)1 C)0 D) cheksiz ko’p

20. tenglamaning ildizlari yig’indisini toping.

A)1,5 B)0,5 C)1 D)-0,5

21. Tenglamaning ildizlari sonini toping.



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

22. Tenglamaning ildizlari sonini toping.

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

23. Tenglamaning ildizlari yig’indisini toping.



A)-6 B)-8 C)2 D)0

24. Agar a < 0 bo’lsa, tenglamaning ildizlari sonini toping.





A)1 B)2 C)3 D)cheksiz ko’p

25. Agar a >0 bo’lsa, tenglamaning ildizlari sonini toping.





A)1 B)2 C)3 D)cheksiz ko’p

26. Agar a = 0 bo’lsa, tenglamaning ildizlari sonini toping.



A)1 B)2 C)3 D)cheksiz ko’p

27. tengsizlikni butun ildizlari yig’indisini toping.

A)1 B)2 C)3 D) cheksiz kattalikka ega

28. tengsizlikni butun ildizlari yig’indisini toping.

A)1 B)2 C)3 D) cheksiz kattalikka ega

29. tenglamani yeching.

A){2;3} B)x<2, x>3 C) x, x D) x<2

30. x2+3x + =0 tenglamaning ildizlari yig’indisini toping.

A) -1 B)-3 C)-4 D)0

31. tenglamaning ildizlari sonini toping.



A)2 B)1 C)3 D)cheksiz ko’p

32. tenglamalar sistemasi nechta yechimga ega?



A)3 B)2 C)4 D)0
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