If e1 and e2 are respectively the eccentricities of the ellipse x218+y24=1
and the hyperbola x29+y24=1,then
write the value of 2e21+e22.
If e1 and e2 are respectively theeccentricities of the ellipse x218+y24=1and the hyperbola x29−y24=1,then therelation between e1 and e2 is