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Fractional Indices

Authored by Yun Chia

Mathematics

9th - 12th Grade

Used 58+ times

Fractional Indices
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13 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following is incorrect?

a2×a6=a12a^2\times a^6=a^{12}

a8÷a3=a5a^8\div a^3=a^5

a6×a3=a9a^6\times a^3=a^9

(2a)2=(4a2)\left(\frac{2}{a}\right)^2=\left(\frac{4}{a^2}\right)

2.

MULTIPLE SELECT QUESTION

1 min • 1 pt

Which of the following is incorrect?

You may choose more than 1 answer.

a3+a3+a3=a9a^3+a^3+a^3=a^9

(3a2)3=27a6\left(3a^2\right)^3=27a^6

(x2y)3=(x6y3)\left(x^2y\right)^3=\left(x^6y^3\right)

(a3b)2=(a23b2)\left(\frac{a}{3b}\right)^2=\left(\frac{a^2}{3b^2}\right)

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

 (718)1\left(\frac{7}{18}\right)^{-1}  is equal to ...

 718-\frac{7}{18}  

 187-\frac{18}{7}  

 187\frac{18}{7}  

 718\frac{7}{18}  

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is  9129^{\frac{1}{2}}  ?

 8128\frac{1}{2}  

81

3

 4124\frac{1}{2}  

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is 641264^{\frac{1}{2}}  ?


32

 631263\frac{1}{2}  

8

4

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a12a^{\frac{1}{2}} ?

 a÷12a\div\frac{1}{2}  

 3a^3\sqrt{a}  

 a×12a\times\frac{1}{2}  

 a\sqrt{a}  

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is 8138^{\frac{1}{3}} ?

 83\frac{8}{3}  

24

2

 233\frac{23}{3}  

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