Question
Question: If xy = m<sup>2</sup> – 9 be a rectangular hyperbola whose branches lie only in the second and fourt...
If xy = m2 – 9 be a rectangular hyperbola whose branches lie only in the second and fourth quadrant, then –
A
| m | ³ 3
B
| m | < 3
C
m Ī R – {| m |}
D
None
Answer
| m | < 3
Explanation
Solution
As branches lie in the second & fourth quadrant
\ We have xy < 0
Ž m2 – 9 < 0
Ž |m| < 3
