[" 16.If "e_(1),e_(2)" and "e_(3)" are the eccentricities "],[" of a parabola,an ellipse and a hyperbola "],[" respectively,then "]

If e_(1) , e_(2) " and " e_(3) the eccentricities of a parabola , and ellipse and a hyperbola respectively , then

If e_1 and e_2 are the eccentricities of a parabola and ellipse respectively, then:

If e_(1) and e_(2) are the eccentricities of a hyperbola and its conjugate then

If eccentricities of a parabola and an ellipse are e and e' respectively, then

If eccentricities of a parabola and an ellipse are e and e' respectively, then

An ellipse and a hyperbola are confocal (have the same focus) and the conjugate axis of the hyperbola is equal to the minor axis of the ellipse.If e_(1) and e_(2) are the eccentricities of the ellipse and the hyperbola,respectively, then prove that (1)/(e_(1)^(2))+(1)/(e_(2)^(2))=2

If e1 and e2 are the eccentricities of a hyperbola and its conjugates then ,

If e_(1) and e_(2) are the eccentricities of the hyperbola and its conjugate hyperbola respectively then (1)/(e_(1)^(2))+(1)/(e_(2)^(2)) is equal to

If e and e' are the eccentricities of a hyperbola and its conjugate hyperbola respectively then prove that 1/e^2+1/(e')^2=1

If radii of director circles of (x^(2))/(a^(2))+(y^(2))/(b^(2))=1 and (x^(2))/(a^(2))-(y^(2))/(b^(2))=1 are 2r and r respectively,let e_(E) and e_(H) are the eccentricities of ellipse and hyperbola respectively,then