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Black Book Advanced Problems in MathematicsMathematicsQuadratic Equation

The minimum value of f(x, y) = x^2 - 4x + y^2 + 6y when x and y are subjected to the restrictions 0 x 1 and 0 y 1 , is :

Options

  1. A-1
  2. B-2
  3. C-3
  4. D-5.

Correct answer

C. -3

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