Math Problem Statement

Evaluate the following expression: log_10(⁴√10)

Solution

To evaluate the given expression log10104\log_{10} \sqrt[4]{10}, follow these steps:

Step 1: Simplify the argument of the logarithm

The fourth root of 10 can be rewritten as: 104=101/4\sqrt[4]{10} = 10^{1/4}

Step 2: Use the logarithmic property

The logarithmic property states: logb(ac)=clogb(a)\log_b(a^c) = c \cdot \log_b(a) Here, a=10a = 10, b=10b = 10, and c=14c = \frac{1}{4}. Substituting into the property gives: log10(101/4)=14log10(10)\log_{10}(10^{1/4}) = \frac{1}{4} \cdot \log_{10}(10)

Step 3: Evaluate log10(10)\log_{10}(10)

By definition of logarithms: log10(10)=1\log_{10}(10) = 1

Step 4: Simplify the result

Substitute log10(10)=1\log_{10}(10) = 1 into the expression: 141=14\frac{1}{4} \cdot 1 = \frac{1}{4}

Final Answer:

log10104=14\log_{10} \sqrt[4]{10} = \frac{1}{4}

Let me know if you'd like further clarification or additional examples! Here are some related questions to consider:

  1. What are the general properties of logarithms and how can they simplify calculations?
  2. How does changing the base of the logarithm affect the result?
  3. What is the relationship between roots and fractional exponents?
  4. Can you extend this result to logbbn4\log_b \sqrt[4]{b^n}?
  5. How do logarithms apply in real-world situations such as pH or decibels?

Tip: Always remember that roots can be expressed as fractional exponents, which makes applying logarithmic rules much easier!

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Math Problem Analysis

Mathematical Concepts

Logarithms
Fractional Exponents
Properties of Logarithms

Formulas

log_b(a^c) = c * log_b(a)
Roots as fractional exponents: ⁿ√a = a^(1/n)

Theorems

Logarithmic properties
Definition of logarithms

Suitable Grade Level

Grades 10-12