Linear Algebra Examples

$\frac{2}{a} = \frac{1 - a}{2 a - 9}$

Step 1

Set the denominator in $\frac{2}{a}$ equal to $0$ to find where the expression is undefined.

$a = 0$

Step 2

The domain is all values of $a$ that make the expression defined.

Interval Notation:

$(- \infty, 0) \cup (0, \infty)$

Set-Builder Notation:

${a | a \neq 0}$

Step 3