[list][*]The line joining points A(4, -2) and B(-4, 2) is a diameter of a circle. Find an equation for the circle. [/*][*]Find an equation for the line [math]l[/math] which is a tangent to the circle at point A. [/*][*]Find the exact area enclosed between the line [math]l[/math] and the coordinate axes outside of the circle. [/*][*]The tangent [math]l[/math] is translated by 5 units in the positive y-direction. Given that the new line intersects the circle at points C and D, find the distance |CD|.[br][br][br][br][/*][/list][br][br]