EAMCET Engineering 2007 Solved Paper

Section: Mathematics

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Question : 138 of 160

Marks: +1, -0

If the line lx+my=1 is a normal to the hyperbola ‌

x2

a2

−‌

y2

b2

=1, then ‌

a2

l2

−‌

b2

m2

is equal to

a2−b2
a2+b2
(a2+b2)2
(a2−b2)2

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