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JEE Main 2013

JEE Main 2013 Mathematics question on Straight Lines and Pair of Lines

The xx-coordinate of the incentre of the triangle that has the coordinates of mid-points of its sides as (0,1)(0, 1), (1,1)(1, 1) and (1,0)(1, 0) is
  1. A.
    2+22 + \sqrt{2}
  2. B.
    2−22 - \sqrt{2}
  3. C.
    1+21 + \sqrt{2}
  4. D.
    1−21 - \sqrt{2}
Show answer

Correct option: B

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