Trigonometry Examples

$37 = 36.8 + 0.2 \cos (\frac{π}{12} \cdot (1 - x))$

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