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The value of ‘c’ for which the set, {(x,y): x²/2 + y² + 2x ≤ 1 } ∩ {(x,y): x/2 -y + c≥0} contains only one point in common is; (a) (-∞,-1]∪[3,∞) (b) {-1,3} (c) {-3} (d) {-1} Ans. is (d)

The value of ‘c’ for which the set, {(x,y): x²/2 + y² + 2x ≤ 1 } ∩ {(x,y): x/2 -y + c≥0} contains only one point in common is;
(a) (-∞,-1]∪[3,∞)  (b) {-1,3}  (c) {-3}  (d) {-1}
Ans. is (d)

Grade:12

1 Answers

Saurabh Koranglekar
askIITians Faculty 10335 Points
3 years ago
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