Exponents Logarithms 933D4F
1. The problem is to understand the relationship between exponents and logarithms.
2. Exponents represent repeated multiplication. For example, $a^x = b$ means multiplying $a$ by itself $x$ times equals $b$.
3. Logarithms are the inverse operation of exponents. If $a^x = b$, then the logarithm base $a$ of $b$ is $x$, written as $\log_a b = x$.
4. Important rules:
- $\log_a (xy) = \log_a x + \log_a y$
- $\log_a \left(\frac{x}{y}\right) = \log_a x - \log_a y$
- $\log_a (x^r) = r \log_a x$
5. These rules help simplify expressions involving logarithms and exponents.
6. Example: If $2^3 = 8$, then $\log_2 8 = 3$ because 2 multiplied by itself 3 times equals 8.
This shows how exponents and logarithms are inverse functions.