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14.4-bo'lim : Mutlaq ekstremal

  1. \(\left( { - 1, - 1} \right)\), \(\left( {5, - 1} \right)\) va \(\left( {5,17} \right)\) uchli uchburchakda \(f\left( {x,y} \right) = 18{x^2} + 4{y^2} - {y^2}x - 2\) ning mutlaq minimal va mutlaq maksimalini toping.
  2. \(0 \le x \le 5\), \( - 3 \le y \le - 1\) tomonidan berilgan to‘rtburchakda \(f\left( {x,y} \right) = 2{x^3} - 4{y^3} + 24xy\) ning mutlaq minimal va mutlaq maksimalini toping.
  3. \(y = 5 - {x^2}\) va \(x\) o'qi bilan chegaralangan mintaqada \(f\left( {x,y} \right) = {x^2} - {y^2} + xy - 5x\) ning mutlaq minimal va mutlaq maksimalini toping.