Precalculus Examples

$x^{2} + 2 x \cos (x - y) + 1 = 0$

Step 1

The provided equation is not an identity.

$x^{2} + 2 x \cos (x - y) + 1 = 0$ is not an identity

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