A+ » VCE » Maths Methods U3 & 4 Master Notes » A2 Algebra » 5.4 Solving Exponential and Logarithmic Equations

5.4 Solving Exponential and Logarithmic Equations

Fundamental of Solving Exponential and Logarithm Functions

  • In solving equations, the most important identity of both exponential and logarithmic functions are that they are one-to-one functions. In other words,

a^{x}=a^{y} or \log_{a}{x}=\log_{a}{y} implies that x=y.

Example

3^{x-1}=81=3^{4}
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