July 2022 1 47 Report
Задание номер 507. Заранее спасибо!
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Answers & Comments


А) \left \{ {{3( \frac{1}{3} x-1) \leq - \frac{1}{2} (2x+1)} \atop {2x-3 \geq x+4}} \right. \left \{ {{x-3 \leq -x- \frac{1}{2} } \atop {2x-x \geq 3+4}} \right.  \left \{ {{2x \leq 3- \frac{1}{2} } \atop {x \geq 7}} \right.  \left \{ {{2x \leq 2 \frac{1}{2} } \atop {x \geq 7}} \right.  \left \{ {{x \leq 1 \frac{1}{4} } \atop {x \geq 7}} \right.  - нет решения.
б)  \left \{ {{ x^{2} -2x \geq 1} \atop {- x^{2} +6x \leq 9}} \right.  \left \{ {{ x^{2} -2x-1 \geq 0} \atop {- x^{2} +6x-9 \leq 0}} \right.  \left \{ {{(x-1+ \sqrt{2} )(x-1- \sqrt{2} ) \geq 0} \atop {- (x-3)^{2}  \leq 0}} \right.  \left \{ {{x \leq 1- \sqrt{2} } \atop {x \geq 1+ \sqrt{2} }} \right.
1 votes Thanks 1
mb17x А кто автор учебника?
tea74 Макарычев углубленный курс
mb17x Спасибо.

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