This is a graph with two red curves representing a mathematical function. The x-axis is labeled with multiples of \pi, specifically from -\pi to \pi, and the y-axis shows numerical values ranging from -10 to 2. The red curves show two vertical asymptotes at x = -\pi/2 and x = \pi/2. The curves approach these asymptotes but never touch them. To the left of the y-axis, the curve starts near the top, decreases steeply as it passes through negative y-values, and continues downward. Similarly, to the right of the y-axis, another curve follows the same pattern in reverse, coming down from positive values of y, approaching the asymptote at x = \pi/2 from the left. The function shows periodic behavior typical of a trigonometric function with asymptotes, suggesting something similar to a tangent or cotangent function