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Racionalieji reiškiniai

Authored by Edita Balinskiene

Mathematics

10th Grade

Used 6+ times

Racionalieji reiškiniai
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23 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Suprastinkite:  8x62x3\frac{8x^6}{2x^3}  

 16x916x^9  

 4x34x^3  

 4x6x3\frac{4x^6}{x^3}  

 44  

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Apskaičiuoti :  2a + 1a 3÷3a6a+3\frac{2a\ +\ 1}{a\ -3}\div\frac{3a}{6a+3}  

 4a2+4a+1a23a\frac{4a^2+4a+1}{a^2-3a}  

 8a+1a2+3a\frac{8a+1}{a^2+3a}  

 115-\frac{1}{15}  

 8+1a+3a\frac{8+1}{a+3a}  

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Suprastinkite:  x3xx3+x2\frac{x^3-x}{x^3+x^2}  

 x+1x2\frac{x+1}{x^2}  

 x2+xx\frac{x^2+x}{x}  

-1

 x1x\frac{x-1}{x}  

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Apskaičiuokite :  5mm15mm2m\frac{5m}{m-1}-\frac{5m}{m^2-m}  

 55  

 5m2\frac{5}{m^2}  

 1m\frac{1}{m}  

 1m1\frac{1}{m-1}  

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Apskaičiuokite:  3a3a21×a1a\frac{3a^3}{a^2-1}\times\frac{a-1}{a}  

 3a4(a2+1)(a2)\frac{3a^4}{\left(a^2+1\right)\left(a-2\right)}  

 a1a(a2+1)\frac{a-1}{a\left(a^2+1\right)}  

 a1a+1\frac{a-1}{a+1}  

 3a2a+1\frac{3a^2}{a+1}  

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Apskaičiuokite:  x2x2+4+4x2+4\frac{x^2}{x^2+4}+\frac{4}{x^2+4}  

1

4

 x2+4(x2+4)2\frac{x^2+4}{\left(x^2+4\right)^2}  

 x+2x2\frac{x+2}{x-2}  

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Pakelkite trupmeną laipsniu :  (3a2a2)3\left(-\frac{3a^2}{a-2}\right)^{^3}  

 27a5(a2)3-\frac{27a^5}{\left(a-2\right)^3}  

 27a5(a2)3\frac{27a^5}{\left(a-2\right)^3}  

 27a6(a2)3-\frac{27a^6}{\left(a-2\right)^3}  

 27a6(a2)3\frac{27a^6}{\left(a-2\right)^3}  

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