BT1 toán 9

BT1 toán 9

9th Grade

12 Qs

quiz-placeholder

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BT1 toán 9

BT1 toán 9

Assessment

Quiz

Mathematics

9th Grade

Medium

Created by

thuy thi

Used 58+ times

FREE Resource

12 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 A\sqrt{A}  xác định khi

 A0A\ge0  

 A>0A>0  

 A0A\ne0  

 A=0A=0  

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 x5\sqrt{x-5}  xác định khi

 x>5x>5  

 x5x\ge5  

 x0x\ne0  

 x5x\ne5  

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 2x1\sqrt{2x-1}  xác định khi

 x<12x<\frac{1}{2}  

 x>12x>\frac{1}{2}  

 x12x\ne\frac{1}{2}  

 x12x\ge\frac{1}{2}  

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Kết quả phép tính  45354\sqrt{5}-3\sqrt{5}  là

 33  

 353\sqrt{5}  

 25-2\sqrt{5}  

 5\sqrt{5}  

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Kết quả phép tính  20\sqrt{20}  là

 252\sqrt{5}  

 323\sqrt{2}  

 454\sqrt{5}  

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Kết quả phép tính 82\sqrt{8}-\sqrt{2}   là

 222\sqrt{2}  

 2\sqrt{2}  

 2\sqrt{2}  

 323\sqrt{2}  

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 x3=2\sqrt{x-3}=2  

Tìm x biết

 x=1x=-1  

 x=7x=7  

 x=5x=5  

 x=9x=9  

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