EllipseHard

Question

The foci of the ellipse = 1 and the hyperbola coincide. Then the value of b2 is

Options

A.1
B.5
C.7
D.9

Solution


⇒ e1 =
ae2 = × 4 = 3
⇒   b2 = 7.
Hence, (C) is the correct answer.

Create a free account to view solution

View Solution Free
Topic: Ellipse·Practice all Ellipse questions

More Ellipse Questions

If the ellipse = 1 meet the ellipse = 1 in four distinct points and a = b2 −10b + 25 then which of the following i...The line passing through the extremity A of the major axis and extremity B of the minor axis of the ellipse x2 + 9y2 = 9...Arrangement of eccentricities of the following ellipses in ascending order of magnitude:(P) = 1 (Q) = 1(R) = 1 (S) = 1...The equation ax2 + 2hxy + by2 + 2gx + 2fy + c = 0 represents an ellipse if-...If F1 and F2 are the feet of the perpendiculars from the foci S1 & S2 of an ellipse = 1on the tangent at any point P on ...