1
BITSAT 2024
MCQ (Single Correct Answer)
+3
-1
The foci of hyperbola $ 4 x^{2}-9 y^{2}-1=0 $ are
A
$ ( \pm \sqrt{13}, 0) $
B
$ \left( \pm \frac{\sqrt{13}}{6}, 0\right) $
C
$ \left(0, \pm \frac{\sqrt{3}}{6}\right) $
D
None of these
2
BITSAT 2021
MCQ (Single Correct Answer)
+3
-1

If x = 9 is the chord of contact of the hyperbola x2 $$-$$ y2 = 9, then the equation of the corresponding pair of tangent is

A
9x2 $$-$$ 8y2 + 18x $$-$$ 9 = 0
B
9x2 $$-$$ 8y2 $$-$$ 18x + 9 = 0
C
9x2 $$-$$ 8y2 $$-$$ 18x $$-$$ 9 = 0
D
9x2 $$-$$ 8y2 + 18x + 9 = 0
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