To find a positive and a negative angle coterminal<span> with a given </span>angle<span>, you can add and subtract if the </span>angle<span> is measured in degrees or if the </span>angle<span> is measured in radians</span>
Is just a set of two or more linear equations. In two variables (x and y) , the graph of a system of two equations is a pair of lines in the plane.
