1. X2 – y2 = 4a2
2. X2 – y2 = 2a2
3. X2 – y2 = a2
4. None
X2 – y2 = 4a2
No Explanation available for this question
1. 4a2x2 = r2 (y2 +4a2)
2. A2 r2 = 2r2 (y2 – 4a2)
3. 2a2 x2 = 2r2 (y2 + 2a2)
4. 4a2x2 = r2 (y2 – 4a2)
4a2x2 = r2 (y2 +4a2)
No Explanation available for this question
1. (-∞,0](1,∞)
2. [1/2,2]
3. (-∞,-2/9](1,∞)
4. (-∞,-6][-2,∞)
(-∞,0]
(1,∞)
No Explanation available for this question
1. X + 2a = 0
2. X + 4a = 0
3. Y + 2a = 0
4. Y+ 4a = 0
X + 4a = 0
No Explanation available for this question
1. A2x2 + 4a2 (d2 – y2) = 0
2. D2 y2 + 4a2 (d2 –x2) = 0
3. D2 y2 + 2a2 (3d2 – 2x2) = 0
4. X2 + 2a2 (d2 + 2x2 ) = 0.
D2 y2 + 4a2 (d2 –x2) = 0
No Explanation available for this question
1. (-∞,0](1,∞)
2. [1/2,2]
3. (-∞,-2/9](1,∞)
4. (-∞,-6][-2,∞)
[1/2,2]
No Explanation available for this question
1. X+ a = 0
2. X + 2a = 0
3. X + 4a = 0
4. None
X + 4a = 0
No Explanation available for this question
1. X + y = 0
2. X – y = 0
3. X – y + = 0
4. 2x – y = 0
X – y = 0
No Explanation available for this question
1. (1,0)
2. (2,2)
3. (3,4)
4. (0,-2)
(2,2)
No Explanation available for this question
1. [-9/2,1/2]
2. (-∞,1][2,∞)
3. (-∞,-9][-1,∞)
4. R
(-∞,-9][-1,∞)
No Explanation available for this question