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Mathematics
The equations of the latus recta of the ellipse 9 x2 + 4y2 - 18x - 8y - 23 = 0 are
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Q. The equations of the latus recta of the ellipse $9 x^2 + 4y^2 - 18x - 8y - 23 = 0 $ are
AP EAMCET
AP EAMCET 2018
A
$x = - 1 \pm \sqrt{5}$
0%
B
$y = 1 \pm \sqrt{5}$
80%
C
$x =1 \pm \frac{2\sqrt{5}}{3}$
20%
D
$y = 2 \pm \sqrt{5}$
0%
Solution:
Correct answer is (b) $y = 1 \pm \sqrt{5}$