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Calculus Made Easy
the point where the tangent touches the curve has for abscissa.
(8) At what angle do the two curves
and
cut one another?
(9) Tangents to the curve are drawn at points for which and . Find the coordinates of the point of intersection of the tangents and their mutual inclination.
(10) A straight line touches a curve at one point. What are the coordinates of the point of contact, and what is the value of ?