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Rdacina patrata a unui numar rational patrat perfect
teotenis9_36883
a year ago
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  • Question 1
    120 seconds
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    Q.

     CalculandCalculand  
     4+2549 \sqrt{4}+\sqrt{25}-\sqrt{49}\  

     obtinem :obtinem\ :   

    answer choices

    -20

     20\sqrt{20}  

     20-\sqrt{20}  

    0

  • Question 2
    180 seconds
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    Q.

     Calculand 10282 obtinem:Calculand\ \sqrt{10^2-8^2}\ obtinem:  

    answer choices

     222^2  

     22  

     66  

     88  

  • Question 3
    180 seconds
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    Q.

     Calculand  8+8+82obtinem :Calculand\ \ 8+\sqrt{8+\sqrt{8^2}}obtinem\ :  

    answer choices

     2424  

     1616  

     1212  

     1010  

  • Question 4
    180 seconds
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    Q.

     Calculand:523426obtinem:Calculand:\sqrt{5^2\cdot3^4\cdot2^6}obtinem:  

    answer choices

     360360  

     340340  

     320320  

     280280  

  • Question 5
    180 seconds
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    Q.

     Calculand 5 49+0,(4)obtinem:Calculand\ \sqrt{5\ \frac{4}{9}}+\sqrt{0,\left(4\right)}obtinem:  

    answer choices

     33  

     66  

     99  

     1212  

  • Question 6
    180 seconds
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    Q.

    Folosind algoritmul de extragere a 
    radacinii patrate pentru: 3481\sqrt{3481}  
    obtinem:

    answer choices

     2929  

     3939  

     4949  

     5959  

  • Question 7
    300 seconds
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    Q.

    Folosind algoritmul de extragere a
    radacinii patrate pentru: 5.3361\sqrt{5.3361}  
    obtinem:

    answer choices

     2,312,31  

     2,412,41  

     2,612,61  

     2,712,71  

  • Question 8
    300 seconds
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    Q.

      Calculand(1+2+3+...+50)252\ Calculand\sqrt{\left(1+2+3+...+50\right)-25\cdot2}  
     obtinem:obtinem:  

    answer choices

     1515  

     2525  

     3535  

     4545  

  • Question 9
    300 seconds
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    Q.

     x din proportia x\ din\ proportia\   

     4006416x=281+7322 141,(7)\frac{\sqrt{400-64\cdot\sqrt{16}}}{x}=\frac{2\cdot\sqrt{81+7\cdot3^2}}{2\ \frac{1}{4}\cdot\sqrt{1,\left(7\right)}}  


     este egal cu :este\ egal\ cu\ :  

    answer choices

     32\frac{3}{2}  

     23\frac{2}{3}  

     52\frac{5}{2}  

     25\frac{2}{5}  

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