If `e_(1)` and `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 the relation between `e_(1)` and `e_(2)`, is

If e_(1) and 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)^(2)

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 the relation between e_1a n d e_2 is a.2e_1 ^2+e_2 ^2=3 b. e_1 ^2+2e_2^ 2=3 c. 2e_1^ 2+e_2 ^2=3 d. e_1 ^2+3e_2 ^2=2

If e_(1) , and e_(2) are respectively the eccentricities of the conics (x^(2))/(25)-(y^(2))/(11)=1 and (x^(2))/(16)+(y^(2))/(7)=1 then e_(1)e_(2) is equal to

If e_(1) and e_(2) are the eccentricities of the ellipse (x^(2))/(18)+(y^(2))/(4)=1 and the hyperbola (x^(2))/(9)-(y^(2))/(4)=1 respectively and (e_(1), e_(2)) is a point on the ellipse 15x^(2)+3y^(2)=k , then the value of k is equal to

If e' is the eccentricity of the ellipse (x^(2))/(a^(2)) + (y^(2))/(b^(2)) =1 (a gt b) , then

If e and e' are the eccentricities of the ellipse 5x^(2)+9y^(2)=45 and the hyperbola 5x^(2)-4y^(2)=45 then ee' = A.9 B.5 C.4 D.1

If e is the eccentricity of the ellipse (x^(2))/(a^(2)) + (y^(2))/(b^(2)) = 1 (a lt b ) , then ,