If e and e' are the eccentricities of the ellipse `5x^(2)  + 9 y^(2) = 45 ` and the hyperbola
Channel: Doubtnut
Date: 2020-05-17

If e and e' are the eccentricities of the ellipse `5x^(2)  + 9 y^(2) = 45 ` and the hyperbola `5x^(2) - 4y^(2) = 45 respectively , then ee' is equal to