?Show that if m is any real number, then there are exactly two lines of slope m that are
Chapter 16, Problem 58(choose chapter or problem)
Show that if m is any real number, then there are exactly two lines of slope m that are tangent to the ellipse \(x^{2} / a^{2}+y^{2} / b^{2}=1\) and their equations are
\(y=m x \pm \sqrt{a^{2} m^{2}+b^{2}}\)
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