/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Problem 14 For each statement, write an equ... [FREE SOLUTION] | 91Ó°ÊÓ

91Ó°ÊÓ

For each statement, write an equivalent statement in exponential form. Do not use a calculator. $$\log _{3} \sqrt[3]{9}=\frac{2}{3}$$

Short Answer

Expert verified
\( 3^{\frac{2}{3}} = \sqrt[3]{9} \)

Step by step solution

01

Identify the Logarithmic Equation

The given equation is \( \log_{3} \sqrt[3]{9} = \frac{2}{3} \). This equation is expressed in logarithmic form and represents a relationship between base 3, the argument \( \sqrt[3]{9} \), and the result \( \frac{2}{3} \).
02

Convert the Logarithmic Form to Exponential Form

The general formula to convert a logarithmic equation \( \log_b(a) = c \) to exponential form is \( b^c = a \). Applying this to our given equation, we replace \( b \) with 3, \( a \) with \( \sqrt[3]{9} \), and \( c \) with \( \frac{2}{3} \).
03

Write the Exponential Form

Utilizing the conversion, the exponential form of the equation is \( 3^{\frac{2}{3}} = \sqrt[3]{9} \). This illustrates that raising the base 3 to the power of \( \frac{2}{3} \) yields the cube root of 9.

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Logarithmic Form
Logarithmic form is a mathematical notation that is essentially the reverse of exponential notation. When you see an equation like \( \log_b(a) = c \), this means that \( b^c = a \). The base \( b \) is raised to the power of \( c \) to result in \( a \). This form is incredibly useful for solving equations where the unknown is an exponent. By transforming such problems into logarithmic form, they become more manageable.

A real-world analogy could be thinking of logarithms as undoing exponentiation, much like division undoes multiplication. When you encounter logarithms:
  • The base \( b \) represents the number being raised to a power.
  • The argument or result \( a \) is the number you end up with after raising the base \( b \) to the power \( c \).
  • The exponent \( c \) shows how many times we use the base in multiplication to reach the argument \( a \).
Using our original problem, you can understand that each part of the logarithmic form has a unique and critical role.
Base and Exponent
The base and exponent are fundamental concepts in both exponential and logarithmic expressions. The base, often seen in expressions like \( b^c \), is the number that is multipled by itself a certain number of times. The exponent \( c \) determines how many times we multiply the base by itself.

In exponential form, \( b^c = a \):
  • \( b \) is the base
  • \( c \) is the exponent
  • \( a \) is the result of the base raised to the exponent
Consider the example from the given exercise: \( 3^{\frac{2}{3}} = \sqrt[3]{9} \). In this case:
  • The base is 3. This is the number being repeatedly multiplied.
  • The exponent is \( \frac{2}{3} \). This specific fraction signifies not just multiplication but also roots, indicating a more complex operation.
  • The result is \( \sqrt[3]{9} \), which is equivalent to 3 being raised to the power of \( \frac{2}{3} \).
Understanding these roles makes it easier to work with exponential equations and aids in converting them to logarithmic form and vice versa.
Cube Root
The cube root of a number \( a \) is a special type of root that represents a number which, when multiplied by itself three times, equals \( a \). It is written as \( \sqrt[3]{a} \). For example, the cube root of 8 is 2 because \( 2 \times 2 \times 2 = 8 \).

Cube roots are particularly interesting because they introduce a third dimension to the multiplication process, not unlike wrapping an object to fit into a cube. This operation is important in various fields, including geometry and physics, where volumetric calculations are frequent.

In our exercise, \( \sqrt[3]{9} \) represents a cube root. The expression \( 3^{\frac{2}{3}} = \sqrt[3]{9} \) implies converting a power notation into a root. The fractional exponent \( \frac{2}{3} \) signifies that we first find the cube root of 9, then raise it to the power of 2. It is a flexible and useful way to express numbers undergoing these calculations.

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