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Ellipse question

2018 · Shift 2 · Q22
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  2. /JEE Advanced
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  5. /2018 · Shift 2 · Q22

Ellipse question

2018 · Shift 2 · Q22

JEE AdvancedMathematicsEllipseMultiple correct+4 / −1
Consider two straight lines, each of which is tangent to both the circle x2 + y2 = (1/2) and the parabola y2 = 4x. Let these lines intersect at the point Q. Consider the ellipse whose centre is at the origin O(0, 0) and whose semi-major axis is OQ. If the length of the minor axis of this ellipse is 2\sqrt 22​, then which of the following statement(s) is (are) TRUE?
  1. A
    For the ellipse, the eccentricity is 1 2\sqrt 22​ and the length of the latus rectum is 1
  2. B
    For the ellipse, the eccentricity is 1/2 and the length of the latus rectum is 1/2
  3. C
    The area of the region bounded by the ellipse between the lines x=12x = {1 \over {\sqrt 2 }}x=2​1​ and x = 1 is 142(π−2){1 \over {4\sqrt 2 }}(\pi - 2)42​1​(π−2)
  4. D
    The area of the region bounded by the ellipse between the lines x=12x = {1 \over {\sqrt 2 }}x=2​1​ and x = 1 is 116(π−2){1 \over {16}}(\pi - 2)161​(π−2)
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