Q.

Normal at point (5, 3) to the rectangular hyperbola xy – y – 2x – 2 = 0 meets the curve again at

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a

(0, –2) 

b

(–1, 0)

c

14,-103

d

34,-14

answer is D.

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Detailed Solution

Given hyperbola xy-y-2x-2=0       and point P=(5, 3)  dirt w.r. to 'x' on b.s x dydx+y-dydx-2=0 dydx=2-yx-1 slope of tangent at P=-14 slope of normal (m)=4 Now equation of normal at P is  y-3=4(x-5)         y=4x-17     sub y in  x(4x-17)-(4x-17)-2x-2=0 4x2-17x-4x+17-2x-2=0 4x2-23x+15=0 (x-5) (4x-3)=0 x=5 (or) x=34 sub x=34 in   y=-14  normal meets again at 34, -14

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Normal at point (5, 3) to the rectangular hyperbola xy – y – 2x – 2 = 0 meets the curve again at