Manipal Entrance Test 2013 Math Paper

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Question : 38 of 80

Marks: +1, -0

If the line lx+my+n=0 cuts the eilipse

x2

a2

+

y2

25

=1 in points whose eccentoric angles differ by

π

2

, then

a2l2+b2m2

n2

is equal to

1
2
4
3
2

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