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Change the numerator into the denominator.

(a) [tex]\frac{3^{-9}}{1}[/tex]

(b) [tex]\frac{a^m}{b^m}[/tex]

(c) [tex]\frac{p^{-8}}{p}[/tex]


Sagot :

Certainly! Let's work through each part of the question, where we will change the position of the numerator and denominator.

### Part (a)
Given expression: [tex]\(\frac{3^{-9}}{1}\)[/tex]

Due to the properties of exponents, when we move a term with a negative exponent from the numerator to the denominator (or vice versa), the sign of the exponent changes:
[tex]\[ \frac{3^{-9}}{1} = 3^{-9} = \frac{1}{3^9} \][/tex]

Calculating [tex]\(3^9\)[/tex], we get:
[tex]\[ 3^9 = 19683 \][/tex]

Thus:
[tex]\[ \frac{1}{3^9} = \frac{1}{19683} \][/tex]

The numerical result is:
[tex]\[ \frac{1}{19683} \approx 5.080526342529086 \times 10^{-5} \][/tex]

### Part (b)
Given expression: [tex]\(\frac{a^m}{b^m}\)[/tex]

Using the property of exponents [tex]\(\frac{a^m}{b^m} = (\frac{a}{b})^m\)[/tex]:
[tex]\[ \frac{a^m}{b^m} = \left(\frac{a}{b}\right)^m \][/tex]

For example, if [tex]\(a = 2\)[/tex], [tex]\(b = 3\)[/tex], and [tex]\(m = 4\)[/tex]:
[tex]\[ \frac{2^4}{3^4} = \left(\frac{2}{3}\right)^4 \][/tex]

Calculating [tex]\((\frac{2}{3})^4\)[/tex]:
[tex]\[ \left(\frac{2}{3}\right)^4 = \frac{2^4}{3^4} = \frac{16}{81} \][/tex]

The numerical result is:
[tex]\[ \frac{16}{81} \approx 0.19753086419753085 \][/tex]

### Part (c)
Given expression: [tex]\(\frac{p^{-8}}{p}\)[/tex]

Using the property of exponents, and the rule [tex]\(\frac{p^{-8}}{p} = p^{-8 - 1} = p^{-9}\)[/tex]:
[tex]\[ \frac{p^{-8}}{p} = p^{-9} = \frac{1}{p^9} \][/tex]

For example, if [tex]\(p = 5\)[/tex]:
[tex]\[ p^{-9} = \frac{1}{5^9} \][/tex]

Calculating [tex]\(5^9\)[/tex], we get:
[tex]\[ 5^9 = 1953125 \][/tex]

Thus:
[tex]\[ \frac{1}{5^9} = \frac{1}{1953125} \][/tex]

The numerical result is:
[tex]\[ \frac{1}{1953125} \approx 5.12 \times 10^{-7} \][/tex]

To summarize, we have the solutions to each part when the numerators are changed into denominators:

- (a) [tex]\(\frac{1}{19683} \approx 5.080526342529086 \times 10^{-5}\)[/tex]
- (b) [tex]\(\left(\frac{2}{3}\right)^4 = 0.19753086419753085\)[/tex]
- (c) [tex]\(\frac{1}{1953125} \approx 5.12 \times 10^{-7}\)[/tex]