Trigonometry Examples

$a = 2$ , $b = 1$ , $c = - 21$

Step 1

For a triangle to be valid, each side must be less than the sum of the other two sides.

Invalid triangle

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$