A 10-ft ladder slides down a wall as its bottom B is pulled away from the wall
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A 10-ft ladder slides down a wall as its bottom B is pulled away from the wall (Figure 21). Using the angle θ as a parameter, find the parametric equations for the path followed by
(a) The top of the ladder A,
(b) The bottom of the ladder B, and
(c) The point P on the ladder, located 4 ft from the top. Show that P describes an ellipse.
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