Chapter 12: Problem 11
Write each as an exponential equation. See Example \(I\). $$ \log _{7} \sqrt{7}=\frac{1}{2} $$
Short Answer
Expert verified
The exponential equation is \(7^{\frac{1}{2}} = \sqrt{7}\).
Step by step solution
01
Identify the Components of the Logarithmic Equation
In the logarithmic equation \( \log_{7} \sqrt{7} = \frac{1}{2} \), identify the base, the result, and the exponent from the equation. Here, the base is \(7\), the result is \(\sqrt{7}\), and the exponent is \(\frac{1}{2}\).
02
Rewrite the Logarithmic Equation as an Exponential Equation
Based on the definition of a logarithm, \( \log_{b} a = c \) can be rewritten as \( b^c = a \). Apply this transformation to the given equation. It becomes \( 7^{\frac{1}{2}} = \sqrt{7} \).
03
Verify the Exponential Representation
Verify that the exponential equation is correctly written. We know that raising a number to the power \( \frac{1}{2} \) is equivalent to taking the square root of that number. Therefore, \( 7^{\frac{1}{2}} = \sqrt{7} \) confirms the correct transformation.
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Key Concepts
These are the key concepts you need to understand to accurately answer the question.
Understanding Logarithmic Equations
Logarithmic equations are a key component of algebra that can initially seem quite challenging. These equations are mathematical statements that express one quantity as the power to which a fixed number, known as the base, must be raised to produce another number. In the equation \( \log_{7} \sqrt{7} = \frac{1}{2} \), we're dealing with a logarithmic function where:
- The base is 7.
- The result is \( \sqrt{7} \).
- The exponent is \( \frac{1}{2} \).
The Power of Exponentiation
Exponentiation is a fundamental mathematical operation that involves raising a base to a power, resulting in repeated multiplication. With the equation \( 7^{\frac{1}{2}} = \sqrt{7} \), we're employing exponentiation. This example shows the direct relation between exponents and roots. Here are some critical points about exponentiation:
- When you raise a number to the power of \( \frac{1}{2} \), you're essentially calculating the square root of that number.
- Exponentiation with fractions, like in our exercise, is a powerful tool as it extends the concept of repeated multiplication to roots.
- The formula \( b^c = a \) is central: the base \( b \) raised to an exponent \( c \) equals the result \( a \).
Mathematics Education Made Simple
Mathematics is often seen as a challenging subject, but with the right strategies, learning it can be straightforward and even enjoyable. Focusing on core concepts like logarithmic equations and exponentiation can help build a strong foundation. Here are some tips to enhance your mathematics education experience:
- Begin with understanding the fundamentals: Grasp basic operations like addition, subtraction, multiplication, and division before moving to more complex topics.
- Practice consistently: Regular problem-solving enhances understanding and reinforces learned concepts.
- Visualize concepts: Use diagrams or physical objects to represent abstract ideas, making them more tangible.
- Apply what you learn: Relate math problems to real-life situations to see their practical applications.
- Use multiple resources: Diversify your learning materials, such as textbooks, online resources, and tutorials, for varied perspectives.