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CĂN THỨC BẬC HẢI

Authored by harry gates

Mathematics

9th Grade

Used 69+ times

CĂN THỨC BẬC HẢI
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10 questions

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1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

 (0,3)2=?\sqrt{\left(-0,3\right)^2}=?  

0,3

-0,3

0,6

-0,09

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

 (311)2=?\sqrt{\left(3-\sqrt{11}\right)^2}=?  

 311\left|3-\sqrt{11}\right|  

 3113-\sqrt{11}  

 113\sqrt{11}-3  

 2-\sqrt{2}  

3.

MULTIPLE SELECT QUESTION

20 sec • 1 pt

 (35)2\sqrt{\left(\sqrt{3}-\sqrt{5}\right)^2}  

 35\sqrt{3}-\sqrt{5}  

 53\sqrt{5}-\sqrt{3}  

 2\sqrt{2}  

 2-\sqrt{2}  

4.

MULTIPLE SELECT QUESTION

20 sec • 1 pt

 2x+7\sqrt{2x+7}  được xác định khi

 x72x\ge-\frac{7}{2}  

 x72x\ge\frac{7}{2}  

 x72x\le-\frac{7}{2}  

 x72x\le\frac{7}{2}  

5.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

 4x\sqrt{4-x}  có nghĩa khi

 x<4x<4  

 x4x\ge4  

 x4x\ge-4  

 x4x\le4  

6.

MULTIPLE SELECT QUESTION

20 sec • 1 pt

 (1,3)2=?-\sqrt{\left(-1,3\right)^2}=?  

-1,3

1,3

-2,6

1,69

7.

FILL IN THE BLANKS QUESTION

20 sec • 1 pt

 62(10)2:52\sqrt{6^2}-\sqrt{(-10)^2}:\sqrt{5^2}  

(a)  

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