
Уравнения и неравенства с модулем
Flashcard
•
Mathematics
•
11th Grade
•
Practice Problem
•
Hard
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1.
FLASHCARD QUESTION
Front
Определение модуля: что такое |x|?
Back
Модуль числа x, обозначаемый |x|, равен x, если x ≥ 0, и -x, если x < 0.
2.
FLASHCARD QUESTION
Front
Как решить уравнение |x - a| = b?
Back
Решение: x - a = b или x - a = -b, что дает x = a + b или x = a - b.
3.
FLASHCARD QUESTION
Front
График функции y = |x|: как он выглядит?
Back
График функции y = |x| представляет собой V-образную линию с вершиной в начале координат.
4.
FLASHCARD QUESTION
Front
Как решить неравенство |x| < a?
Back
Решение: -a < x < a.
5.
FLASHCARD QUESTION
Front
Как решить неравенство |x| > a?
Back
Решение: x < -a или x > a.
6.
FLASHCARD QUESTION
Front
Как найти точки пересечения графиков y = |x^2 - 10| и y = |x - 5| + |x + 3|?
Back
Нужно решить уравнение |x^2 - 10| = |x - 5| + |x + 3|.
7.
FLASHCARD QUESTION
Front
Как решить уравнение |x + 2| = |x - 2|?
Back
Решение: x + 2 = x - 2 или x + 2 = -x + 2, что дает x = 0 или x = -2.
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