1.

A variable line has intercepts e and e′ on the coordinate axes, where e2 and e′2 are the eccentricities of a hyperbola and its conjugate hyperbola respectively. The value of r for which the line always touches the circle x2+y2=r2 is

Answer»

A variable line has intercepts e and e on the coordinate axes, where e2 and e2 are the eccentricities of a hyperbola and its conjugate hyperbola respectively. The value of r for which the line always touches the circle x2+y2=r2 is



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