If the vertices of a hyperbola be at - 2 ,   0 and 2 ,   0 and one of its foci be at - 3 ,  …

If the vertices of a hyperbola be at -2, 0 and 2, 0 and one of its foci be at -3, 0, then which one of the following points does not lie on this hyperbola ?
  1. 6, 52
  2. -6, 210
  3. 26, 5
  4. 4, 15

Solution

Since, the vertex of the hyperbola are A-2, 0 and A2, 0.

Hence, the transverse axis of the hyperbola is x- axis and centre is O0,0.

Equation of hyperbola can be taken as

x2a2-y2b2=1

a=2 and ae=3

e=32

Since, b2=a2e2-1b2=a2e2-a2=9-4=5

Hence, equation of hyperbola is x24-y25=1

Clearly, point 6, 52 doesn't lies on the hyperbola.

Asked in: JEE Main 2019 (12 Jan Shift 1)

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