Using numerical analysis and the Quotient Rule of Logarithms, how can log(r^3/n^2) be rewritten?

1 answer

To rewrite the expression \( \log\left(\frac{r^3}{n^2}\right) \) using the Quotient Rule of Logarithms, we can apply the following rules of logarithms:

  1. The Quotient Rule states that \( \log\left(\frac{a}{b}\right) = \log(a) - \log(b) \).
  2. The Power Rule states that \( \log(a^k) = k \cdot \log(a) \).

Now let's apply these rules step by step to rewrite \( \log\left(\frac{r^3}{n^2}\right) \):

  1. Apply the Quotient Rule: \[ \log\left(\frac{r^3}{n^2}\right) = \log(r^3) - \log(n^2) \]

  2. Now apply the Power Rule to both terms:

    • For the first term: \[ \log(r^3) = 3 \cdot \log(r) \]
    • For the second term: \[ \log(n^2) = 2 \cdot \log(n) \]
  3. Combine these results: \[ \log\left(\frac{r^3}{n^2}\right) = 3 \cdot \log(r) - 2 \cdot \log(n) \]

Therefore, the expression \( \log\left(\frac{r^3}{n^2}\right) \) can be rewritten as:

\[ 3 \cdot \log(r) - 2 \cdot \log(n) \]