Grade 12Analytical Geometry
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}
(a) (-∞,-1]∪[3,∞) (b) {-1,3} (c) {-3} (d) {-1}
Ans. is (d)
