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Black Book Advanced Problems in MathematicsMathematicsFunctions

The equation ||x-1|+a| = 4, a R , has :

Options

  1. A3 distinct real roots for unique value of a
  2. B4 distinct real roots for a (- , -4)
  3. C2 distinct real roots for |a| < 4
  4. Dno real roots for a > 4

Correct answer

A. 3 distinct real roots for unique value of a

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