Math Problem Statement
If log9 8 = x what is log4 3?
Solution
We are given that , and we are tasked with finding .
To solve this, we will use the change of base formula and work step by step.
Step 1: Change of Base Formula
The change of base formula is:
Where is the new base you want to convert to (usually base 10 or base ).
First, let's work with .
Step 2: Express in terms of common logs
Using the change of base formula:
Since we are given that , this means:
Now we need to express using the same approach.
Step 3: Express in terms of common logs
Using the change of base formula again for :
Step 4: Relate and
We now have the two expressions:
and
To find the relationship between these, we might need to calculate numerical values or use properties of logarithms. Would you like to proceed with calculating specific values, or do you want to explore how to manipulate these expressions further?
Follow-up questions:
- How does the change of base formula apply to other logarithmic bases?
- Can you simplify the expression for without using a calculator?
- What is the numerical approximation of ?
- How can you use logarithms to solve exponential equations?
- What is the natural logarithm and how does it compare to common logarithms?
Tip: When using the change of base formula, you can often choose a base that makes calculations easier, such as base 10 (common logarithms) or base (natural logarithms).
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Math Problem Analysis
Mathematical Concepts
Logarithms
Change of Base Formula
Formulas
log_b a = log_c a / log_c b
log_9 8 = log 8 / log 9
log_4 3 = log 3 / log 4
Theorems
Change of Base Theorem
Suitable Grade Level
Grades 9-12
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