back to *Trigonometry*
# Logarithm Equation

- Question 3
- What is the domain of the function log(2x
^{2}- 3) ?

- Solution
- The domain of a log(x) function is that the variable x must be greater than zero.
- From this, we have 2x
^{2}- 3 > 0 - 2x
^{2}> 3 - x
^{2}> 1.5 - then x < -1.22 or x > 1.22

- Therefore, the domain of the given function is x must be larger than 1.22 or smaller than -1.22