Math Problem Statement

log4/log1/2

Solution

Let's simplify the expression log4log12\frac{\log 4}{\log \frac{1}{2}}.

Step 1: Understand the logarithm properties

First, recall that: log12=log(21)\log \frac{1}{2} = \log \left(2^{-1}\right) Using the logarithm power rule, logab=bloga\log a^b = b \log a, this becomes: log12=log2\log \frac{1}{2} = -\log 2

Step 2: Substitute into the original expression

Now substitute log12=log2\log \frac{1}{2} = -\log 2 into the original expression: log4log12=log4log2\frac{\log 4}{\log \frac{1}{2}} = \frac{\log 4}{-\log 2}

Step 3: Simplify the expression

Next, simplify log4\log 4 using log4=log(22)=2log2\log 4 = \log (2^2) = 2\log 2: log4log2=2log2log2\frac{\log 4}{-\log 2} = \frac{2\log 2}{-\log 2}

Cancel out log2\log 2 in the numerator and denominator: 2log2log2=2\frac{2\log 2}{-\log 2} = -2

So, the final answer is: log4log12=2\frac{\log 4}{\log \frac{1}{2}} = -2

Would you like more details or have any questions?

Here are some related questions:

  1. How would you simplify log8log12\frac{\log 8}{\log \frac{1}{2}}?
  2. What is the value of log214\log_2 \frac{1}{4}?
  3. How does the logarithm property logab=bloga\log a^b = b \log a apply to other bases?
  4. What is the result of log16log14\frac{\log 16}{\log \frac{1}{4}}?
  5. How do you simplify log9log13\frac{\log 9}{\log \frac{1}{3}}?

Tip: Remember that log(1a)=loga\log \left(\frac{1}{a}\right) = -\log a, which can simplify many logarithmic expressions.

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Math Problem Analysis

Mathematical Concepts

Logarithms

Formulas

Logarithm power rule: \( \log a^b = b \log a \)

Theorems

-

Suitable Grade Level

High School