In each of the, find the equations of the hyperbola satisfying the given conditions.

Foci ( 3, 0), the latus rectum is of length 8.

Foci ( 3, 0), the latus rectum is of length 8.


Here, the foci are on x-axis.


Thus,


The equation of the hyperbola is of the form


Since, the foci are (), c=


Length of latus rectum = 8



b2 = 4a


We know that, a2 + b2 = c2


a2 + 4a = 45


a2 + 4a -45 = 0


a2 + 9a – 5a -45 = 0


(a +9)(a -5) = 0


A = -9,5


Since, a is non – negative, a = 5


Thus, b2 = 4a = 4 × 5 = 20


Hence, the equation of the hyperbola is


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