Natural ko‘rsatkichli darajaning arifmetik ildizi va uning xossalari — 8-sinf Algebra test savollari

1.⁵√(−1024) ni hisoblang.

• A)−4
• B)4
• C)−2
• D)−$\frac{1024}{5}$

2.³√$\left(-125\right)+\left(\frac{1}{8}\right)\cdot$⁶√64 ifodaning qiymatini toping.

• A)−4,75
• B)−4,25
• C)−5,25
• D)4,75

3.¹²√(64²) ifodaning qiymatini hisoblang.

• A)2
• B)4
• C)8
• D)64

4.⁶√(36³) ifodaning qiymatini hisoblang.

• A)6
• B)36
• C)3
• D)216

5.x⁴ = 81 tenglamaning barcha haqiqiy ildizlarini toping.

• A)x₁ = 3, x₂ = −3
• B)x = 3 (bitta ildiz)
• C)x = 9
• D)x₁ = 3, x₂ = −3, x₃ = 9

6.⁴√0,0016 ifodaning qiymatini toping.

• A)0,2
• B)0,4
• C)0,04
• D)2

7.√$\left(\frac{81}{100}\right)$ ifodaning qiymatini toping.

• A)$\frac{9}{10}$
• B)$\frac{81}{10}$
• C)$\frac{3}{10}$
• D)$\frac{9}{100}$

8.x³ = −8 tenglamaning ildizini toping.

• A)x = −2
• B)x = 2
• C)x = −4
• D)ildizi yo‘q

9.⁴√16 ifodaning qiymatini hisoblang.

• A)2
• B)4
• C)8
• D)16

10.a nomanfiy sonning n-darajali arifmetik ildizi qanday belgilanadi (n ≥ 2)?

• A)ⁿ√a
• B)aⁿ
• C)a/n
• D)n·a