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Find the equation of the hyperbola whose...

Find the equation of the hyperbola whose foci are `(6,4)a n d(-4,4)` and eccentricity is 2.

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Let `(h,k)` are the coordinates of the center of the hyperbola.
Then, equation of the hyperbola,
`(x-h)^2/a^2 - (y-k)^2/b^2 = 1`
Now, center of the hyperbola is the midpoint of the foci.
Here, foci are given `(6,4) and (-4,4).`
`:. h = (6-4)/2 = 1 and k = (4+4)/2 = 4`
So, the equation becomes,
`(x-1)^2/a^2 - (y-4)^2/b^2 = 1`
...
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