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KVPY2015MathematicsArea Under Curves

The figure shows a portions of the graph y=2 x-4 x³ . The line y = c is such that the areas of the regions marked I and II are equal. If a, b are the x -coordinates of A, B respectively, then a + b equals

Options

  1. A2 7
  2. B3 7
  3. C4 7
  4. D5 7

Correct answer

A. 2 7

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