If `ea n de '` the eccentricities of a hyperbola and its conjugate, prove that `1/(e^2)+1/(e '^2)=1.`

If e and e' be the eccentricities of a hyperbola and its conjugate, prove that 1/e^2+1/(e')^2=1 .

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

If e_1 and e_2 are the eccentricities of a hyperbola and its conjugate, prove that: 1/e_1^2+1/e_2^2=1

If e_1 and e_2 be the eccentricities of a hyperbola and its conjugate, show that 1/(e_1^2)+1/(e_2^2)=1 .

If e_1 and e_2 are the eccentricities of a hyperbola and its conjugate then prove that (1)/(e_1^2)+(1)/(e_2^2)=1 .

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

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

If e_1, e_2 , are the eccentricities of a hyperbola, its conjugate hyperbola, prove that (1)/(e_1^2)+(1)/(e_2^2)=1 .

e_(1) and e_(2) are respectively the eccentricites of a hyperbola and its conjugate. Prove that (1)/(e_1^(2))+(1)/(e_2^2) =1