Trigonometry Examples

$\frac{1 - 2 \cos^{2} (x)}{\sin (x) \cos (x)} = \tan (x) - \cot (x)$

Step 1

A linear equation is an equation of a straight line, which means that the degree of a linear equation must be $0$ or $1$ for each of its variables. In this case, there are no variables in the equation.

Linear