Math Problem Statement

Evalute log base 2 of 9/14

Solution

To evaluate log2(914)\log_2\left(\frac{9}{14}\right), follow these steps:

  1. Use the logarithmic property:
    logb(ac)=logb(a)logb(c)\log_b\left(\frac{a}{c}\right) = \log_b(a) - \log_b(c) This gives: log2(914)=log2(9)log2(14)\log_2\left(\frac{9}{14}\right) = \log_2(9) - \log_2(14)

  2. We now need to approximate log2(9)\log_2(9) and log2(14)\log_2(14):

    • log2(9)3.1699\log_2(9) \approx 3.1699
    • log2(14)3.8074\log_2(14) \approx 3.8074
  3. Subtract the two values: log2(914)=3.16993.8074=0.6375\log_2\left(\frac{9}{14}\right) = 3.1699 - 3.8074 = -0.6375

So, log2(914)0.6375\log_2\left(\frac{9}{14}\right) \approx -0.6375.

Would you like more details on logarithmic properties, or any clarifications?

Here are 5 related questions:

  1. How would you evaluate log2(14)\log_2(14) using the change of base formula?
  2. What is the value of log2(149)\log_2\left(\frac{14}{9}\right)?
  3. How do you convert between different logarithmic bases?
  4. What are common logarithmic identities?
  5. How do you approximate logarithmic values without a calculator?

Tip: Using the change of base formula, logb(x)=log(x)log(b)\log_b(x) = \frac{\log(x)}{\log(b)}, can help you compute logs with different bases more easily.

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Math Problem Analysis

Mathematical Concepts

Logarithms
Properties of Logarithms
Logarithmic Approximation

Formulas

log_b(a/c) = log_b(a) - log_b(c)
log_b(x) = log(x) / log(b)

Theorems

Logarithmic Properties
Change of Base Formula

Suitable Grade Level

Grades 10-12