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Circle question

2023 · 31 Jan · Shift 2 · Q37
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  5. /2023 · 31 Jan · Shift 2 · Q37

Circle question

2023 · 31 Jan · Shift 2 · Q37

JEE MainMathematicsCircleMCQ+4 / −1
The set of all values of a2a^{2}a2 for which the line x+y=0x+y=0x+y=0 bisects two distinct chords drawn from a point P(1+a2,1−a2)\mathrm{P}\left(\frac{1+a}{2}, \frac{1-a}{2}\right)P(21+a​,21−a​) on the circle 2x2+2y2−(1+a)x−(1−a)y=02 x^{2}+2 y^{2}-(1+a) x-(1-a) y=02x2+2y2−(1+a)x−(1−a)y=0, is equal to :
  1. A
    (0,4](0,4](0,4]
  2. B
    (4,∞)(4, \infty)(4,∞)
  3. C
    (2,12](2,12](2,12]
  4. D
    (8,∞)(8, \infty)(8,∞)
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