Math Problem Statement

Evaluate the following expressions: ln(√13) and log(27.2), rounding answers to the nearest thousandth.

Solution

From the uploaded image, we need to evaluate the following expressions and round the answers to the nearest thousandth:

  1. ln13\ln \sqrt{13}
  2. log27.2\log 27.2

Let me compute these for you:


  1. ln13\ln \sqrt{13}:
    Using the property of logarithms:
    ln13=ln(131/2)=12ln13\ln \sqrt{13} = \ln (13^{1/2}) = \frac{1}{2} \ln 13
    Approximation: ln132.564949\ln 13 \approx 2.564949
    ln13=12×2.564949=1.282475\ln \sqrt{13} = \frac{1}{2} \times 2.564949 = 1.282475
    Rounded to the nearest thousandth: ln131.282\ln \sqrt{13} \approx 1.282

  1. log27.2\log 27.2:
    Use the base-10 logarithm property:
    log27.21.43457\log 27.2 \approx 1.43457
    Rounded to the nearest thousandth: log27.21.435\log 27.2 \approx 1.435

Final Results:

  1. ln131.282\ln \sqrt{13} \approx 1.282
  2. log27.21.435\log 27.2 \approx 1.435

Would you like a detailed explanation of the steps?


Here are 5 related questions to expand your understanding:

  1. How do natural logarithms (ln\ln) differ from base-10 logarithms (log\log)?
  2. How do the properties of logarithms simplify complex expressions?
  3. Can logarithms of negative numbers or zero be evaluated? Why or why not?
  4. What is the practical significance of ln\ln in real-world applications?
  5. How would you compute log\log or ln\ln without a calculator?

Tip: Always apply logarithmic properties to simplify expressions before calculating, as this reduces potential errors!

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Logarithms
Natural Logarithms (ln)
Base-10 Logarithms (log)
Properties of Logarithms

Formulas

ln(a^b) = b * ln(a)
log(a * b) = log(a) + log(b)

Theorems

Properties of logarithms

Suitable Grade Level

Grades 9-11