"If `e_1a n d\ e_2`  are respectively the eccentricities of the ellipse `(x^2)/(18)+(y
Channel: Doubtnut
Date: 2020-07-05

"If `e_1a n d\ e_2`
 
 are respectively the eccentricities of the ellipse `(x^2)/(18)+(y^2)/4=1`
 
 and the hyperbola `(x^2)/9-(y^2)/4=1,`
 
 then write the value of `2e_1^ 2+e_2^ 2dot`"