Funksiyalar ustida arifmetik amallar — 10-sinf Algebra test savollari

1.f(x)=x²+1 va g(x)=2x-3 bo'lsa, (f+g)(x) ni toping.

• A)x²+2x-2
• B)x²-2x+4
• C)x²+2x+4
• D)x²-2x-2

2.f(x)=x²-4 va g(x)=x+2 bo'lsa, (f/g)(x) ni soddalashtiring (x≠-2 da).

• A)x-2
• B)x+2
• C)x²-2
• D)x-4

3.f(x)=3x va g(x)=x-1 bo'lsa, (f·g)(2) ni toping.

• A)6
• B)5
• C)3
• D)12

4.f(x)=x+5 va g(x)=x-5 bo'lsa, (f·g)(x) ni toping.

• A)x²-25
• B)x²+25
• C)x²-10x+25
• D)x²+10x+25

5.f(x)=2x²+1 va g(x)=x²-1 bo'lsa, (f-g)(x) ni toping.

• A)x²+2
• B)x²
• C)3x²
• D)x²-2

6.f(x)=x²-1 va g(x)=x+1 bo'lsa, (f/g)(x) ning aniqlanish sohasini toping (soddalashtirishdan oldin).

• A)x≠-1
• B)barcha haqiqiy sonlar
• C)x≠1
• D)x≠0

7.f(x)=x² va g(x)=3x bo'lsa, (f+g)(1) ni toping.

• A)4
• B)3
• C)1
• D)9

8.f(x)=4x va g(x)=2 bo'lsa, (f/g)(x) ni toping (g(x)≠0).

• A)2x
• B)8x
• C)2
• D)$\frac{x}{2}$

9.(f+g)(x) funksiyaning aniqlanish sohasi f va g larning aniqlanish sohalari bilan qanday bog'liq?

• A)ikkalasining kesishmasi
• B)ikkalasining birlashmasi
• C)faqat f ning sohasi
• D)faqat g ning sohasi

10.f(x)=x-2 va g(x)=x+2 bo'lsa, (f·g)(0) ni toping.

• A)-4
• B)4
• C)0
• D)-2