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JEE Main202116 Mar 2021Morning ShiftMathematicsFunctionsActual

The number of elements in the set x ∈ R : | x | - 3 x + 4 = 6 is equal to

Options

  1. A3
  2. B2
  3. C4
  4. D1

Correct answer

B. 2

Step-by-step solution

x ≠ - 4 x - 3 x + 4 = 6 x - 3 = 6 x + 4 No. of solutions = 2

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