Let A (0, β ), B (–2, 0) and C (1, 1) be the vertices of a triangle then If I 1 is the…

Mathematics · JEE Advanced · NTA ExamsCo-ordinate Geometry

Let A (0, β), B (–2, 0) and C (1, 1) be the vertices of a triangle then

If I1 is the interval of values of β for which A is obtuse and I2 be the interval of values of β for which A is largest angle of ∆ABC, then
  1. I1 = I2
  2. I1 is a subset of I2
  3. I2 is a subset of I1
  4. None of these

Answer

(B) I 1 is a subset of I 2

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