Find the points on the graph of the polar equation where the tangent line is horizontal or vertical Assume 0 0 2 Enter your answers as a comma separated list of ordered pail r 1 cos 0 horizontal tangent smallest 8 value argest 8 value wertical tangent smallest 8 value argest 8 value r 0 r 0 r 0 r 0 r 0 r 0 117