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Chapter 4 Indices, Surds and Logarithms (4.3)

Mathematics

1st - 5th Grade

Used 729+ times

Chapter 4 Indices, Surds and Logarithms (4.3)
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Simplify log3 9 + log3 27.

−1

4

5

1

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Simplify log2 800 − log2 100.

8

−3

3

1

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Evaluate log3 81.

44

4-4

14\frac{1}{4}

14-\frac{1}{4}

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Evaluate 3 log2 4.

3

2

6

4

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Write 52 = 25 in logarithmic equation.

log5 2 = 25

log25 5 = 2

log2 25 = 5

log5 25 = 2

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Write  2^{-4}=\frac{1}{16} in logarithmic equation.

 log2(116)=4\log_2\left(\frac{1}{16}\right)=-4  

 log42=116\log_{-4}2=\frac{1}{16}  

 log4(116)=2\log_{-4}\left(\frac{1}{16}\right)=2  

 log2x(4)=116\log_{2x}\left(-4\right)=\frac{1}{16}  

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Express  log232=5\log_232=5 in index form.

 25=322^{-5}=32 

 25=322^5=32  

 232=52^{32}=5  

 325=232^5=2  

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