Applying the Rules of Exponentiation

Oct 13, 2025 by windailys.com 56 views

Understanding the Problem

When simplifying expressions involving exponents, it's essential to remember the rules of exponentiation. The expression $ r^0 s^{-1} \cdot r^0 s^4 $ requires us to apply these rules to simplify it into a single term without a denominator.

Applying the Rules of Exponentiation

To simplify the given expression, we need to apply the following rules:

$a^0 = 1$ for any non-zero value of $a$
$a^{-n} = \frac{1}{a^n}$ for any non-zero value of $a$ and any positive integer $n$
When multiplying two terms with the same base, we add their exponents

Simplifying the Expression

Let's simplify the expression step by step:

Step 1: Simplify the Terms with Exponent 0

We know that $r^0 = 1$ for any non-zero value of $r$ . Therefore, we can simplify the terms $r^0$ as follows:

r^0 = 1

Step 2: Simplify the Terms with Negative Exponents

We know that $s^{-1} = \frac{1}{s^1} = \frac{1}{s}$ . Therefore, we can simplify the term $s^{-1}$ as follows:

s^{-1} = \frac{1}{s}

Step 3: Multiply the Terms

Now that we have simplified the terms with exponent 0 and negative exponents, we can multiply them together:

r^0 s^{-1} \cdot r^0 s^4 = 1 \cdot \frac{1}{s} \cdot 1 \cdot s^4

Step 4: Apply the Rule for Multiplying Terms with the Same Base

When multiplying two terms with the same base, we add their exponents. In this case, we have $s^4$ and $\frac{1}{s}$ , which can be written as $s^{-1}$ . Therefore, we can add their exponents as follows:

s^4 \cdot s^{-1} = s^{4 + (-1)} = s^3

Step 5: Simplify the Expression

Now that we have simplified the terms and applied the rule for multiplying terms with the same base, we can simplify the expression as follows:

r^0 s^{-1} \cdot r^0 s^4 = 1 \cdot \frac{1}{s} \cdot 1 \cdot s^4 = s^3

Conclusion

In conclusion, the simplified expression is $s^3$ . This is the final answer to the problem.

Final Answer

The final answer is $\boxed{s^3}$ .

Understanding the Problem

Q&A

Q: What is the value of $r^0$ ?

A: The value of $r^0$ is 1 for any non-zero value of $r$ . This is because any non-zero number raised to the power of 0 is equal to 1.

Q: What is the value of $s^{-1}$ ?

A: The value of $s^{-1}$ is $\frac{1}{s}$ . This is because a negative exponent indicates that we need to take the reciprocal of the base.

Q: How do we simplify the expression $r^0 s^{-1} \cdot r^0 s^4$ ?

A: To simplify the expression, we need to apply the rules of exponentiation. We can start by simplifying the terms with exponent 0 and negative exponents, and then multiply them together.

Q: What is the rule for multiplying terms with the same base?

A: When multiplying two terms with the same base, we add their exponents. This means that if we have two terms with the same base, we can add their exponents to get the exponent of the resulting term.

Q: How do we apply the rule for multiplying terms with the same base to the expression $r^0 s^{-1} \cdot r^0 s^4$ ?

A: We can apply the rule by adding the exponents of the two terms with the same base. In this case, we have $s^4$ and $s^{-1}$ , which can be written as $s^{4 + (-1)} = s^3$ .

Q: What is the final simplified expression?

A: The final simplified expression is $s^3$ .

Common Mistakes to Avoid

When simplifying expressions involving exponents, it's essential to remember the rules of exponentiation. Here are some common mistakes to avoid:

Not simplifying the terms with exponent 0 and negative exponents
Not applying the rule for multiplying terms with the same base
Not adding the exponents correctly

Tips and Tricks

Here are some tips and tricks to help you simplify expressions involving exponents:

Always start by simplifying the terms with exponent 0 and negative exponents
Apply the rule for multiplying terms with the same base
Add the exponents correctly
Check your work by plugging in values for the variables

Conclusion

In conclusion, simplifying expressions involving exponents requires us to apply the rules of exponentiation. By following the steps outlined in this article, you can simplify expressions like $ r^0 s^{-1} \cdot r^0 s^4 $ and get the final answer.

Final Answer

The final answer is $\boxed{s^3}$ .