Logarithms

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Math › Logarithms

Questions 1 - 10
1

Solve the following:

Explanation

When the base isn't explicitly defined, the log is base 10. For our problem, the first term

is asking:

For the second term,

is asking:

So, our final answer is

2

Simplify the expression using logarithmic identities.

The expression cannot be simplified

Explanation

The logarithm of a fraction is equal to the logarithm of the numerator minus the logarithm of the denominator.

If we encounter two logarithms with the same base, we can likely combine them. In this case, we can use the reverse of the above identity.

3

Which is another way of expressing

?

Explanation

Use the rule:

therefore

4

Add the logarithms:

Explanation

When adding logarithms of the same base, all you have to do is multiply the numbers inside the function as shown below:

5

Solve:

Explanation

Change the base of the inner term or log to base ten.

According to the log property:

The log based ten and the ten to the power of will cancel, leaving just the power.

The answer is:

6

Solve the following:

Explanation

When the base isn't explicitly defined, the log is base 10. For our problem, the first term

is asking:

For the second term,

is asking:

So, our final answer is

7

Which is another way of expressing

?

Explanation

Use the rule:

therefore

8

Add the logarithms:

Explanation

When adding logarithms of the same base, all you have to do is multiply the numbers inside the function as shown below:

9

Simplify the expression using logarithmic identities.

The expression cannot be simplified

Explanation

The logarithm of a fraction is equal to the logarithm of the numerator minus the logarithm of the denominator.

If we encounter two logarithms with the same base, we can likely combine them. In this case, we can use the reverse of the above identity.

10

Simplify the expression using logarithmic identities.

The expression cannot be simplified

Explanation

The logarithm of a fraction is equal to the logarithm of the numerator minus the logarithm of the denominator.

If we encounter two logarithms with the same base, we can likely combine them. In this case, we can use the reverse of the above identity.

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