JEE Advanced Mathematics question
The set of real values of for which the equation
(k+ + 2(k-1)xy + - x + 2y + 3 = 0
represents an ellipse is
Answer: (A)
Solution
Here . For an ellipse we need :
(k+1)· 1 - (k- > 0 ⇒ - +
See the full step-by-step solution
Create a free account to read the complete working (3 steps), and practise questions like this in a timed test.
Create a free account