
Метод рационализации
Authored by Светлана Никитина
Mathematics
11th Grade
Used 5+ times

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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Неравенство 𝑓(𝑎) > 𝑓(𝑏) эквивалентно неравенству a > b; иными словами, неравенство 𝑓(𝑎) - 𝑓(𝑏) > 0 эквивалентно неравенству …..
a − b < 0
a − b > 0
b – a > 0
a + b > 0
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Как по - другому еще называют метод рационализации?
метод вынесение общего множителя
метод оценки
метод декомпозиции
3.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Расположите в правильном порядке алгоритм метода рационализации:
1) Привести данное неравенство к стандартному виду: слева дробь (или произведение), справа – ноль.
2) Найти ОДЗ
3) Решить полученное неравенство, например, методом интервалов.
4) Заменить выражения левой части на более простые, эквивалентные им по знаку.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
В каком виде можно переписать данное неравенство:
(3 + 𝑥 − 2𝑥 2 ) log𝑥+2(3𝑥 + 5) ≥ 0
(3 + 𝑥 − 2𝑥 2 )(𝑥 + 2 − 1)(3𝑥 + 5 − 1)
(3 + 𝑥 + 2𝑥 2 )(𝑥 + 2 + 1)(3𝑥 + 5 − 1)
(3 + 𝑥 − 2𝑥 2 )(𝑥 + 2 − 1)(3𝑥 + 5 + 1)
(3 + 𝑥 − 2𝑥 2 )(𝑥 + 2 + 1)(3𝑥 + 5 − 1)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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