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Question

The asymptotes of a hyperbola having centre at the point (2,4) are parallel to the lines 2x+3y=0 and 3x+2y=0. If the hyperbola passes through the point (5,3), Find the equation of the hyperbola.

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Solution

Let the asymptotes be 2x+3y+c1=0 and 3x+2y+c2=0
Since, the asymptotes passes through the centre (2,4) of the hyperbola.
,4+6+c1=0 and 6+8+c2=0
c1=10,c2=14
Thus, the equations of the asymptotes are
2x+3y10=0 and 3x+2y14=0
Let the equation of the hyperbola be
(2x+3y10)(3x+2y14)+λ=0 ........(1)
It passes through (5,3).
,(10+910)(15+614)+λ=0
9×7+λ=0
λ=63
Putting the value of λ in (1), we obtain
(2x+3y10)(3x+2y14)63=0
This is the equation of the required hyperbola.

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