If the set of all , for which the roots of the equation are positive is , then is equal to ______.
Answer: 7
Solution
For both roots of to be positive, three conditions hold. The product requires . The sum is then automatically positive. The discriminant gives , i.e. or . Intersecting with yields . Comparing with , , , , so .
JEE Main · 2025 · 02 Apr 2025 · Shift 2 · Integer answer