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Black Book Advanced Problems in MathematicsMathematicsFunctions

Let f(x) = cases 2x + 3 & ; x 1 a^2x + 1 & ; x > 1 cases . If the range of f(x) = R (set of real numbers) then number of integral value(s), which a may take :

Options

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

Correct answer

C. 4

Step-by-step solution

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