Linear Algebra Examples

$z = 7 (\cos (15) + i \sin (15)) \cdot (2 (\cos (110) + i \sin (110)))$

Step 1

The domain of the expression is all real numbers except where the expression is undefined. In this case, there is no real number that makes the expression undefined.

Interval Notation:

$(- \infty, \infty)$

Set-Builder Notation:

${x | x \in ℝ}$

Step 2