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ВИДЕО УРОК
1. Решите неравенство:
а) 0 < х < 2; х = –2; б) 0 < х
< 1; х = 2;
в) 0 < х
< 1; х = –2;
г) 0 < х
< 1; х = –1.
б) (–∞; –3) ∪ (–1; 2);
в) (–∞; –3] ∪ [–1; 2];
г) (–∞; –3) ∪ [–1; 2).
б) [√͞͞͞͞͞3; 2√͞͞͞͞͞3] ∪ [3√͞͞͞͞͞3;
5√͞͞͞͞͞3];
в) (√͞͞͞͞͞3; 2√͞͞͞͞͞3] ∪ (3√͞͞͞͞͞3;
5√͞͞͞͞͞3];
г) (√͞͞͞͞͞3; 2√͞͞͞͞͞3) ∪ (3√͞͞͞͞͞3;
5√͞͞͞͞͞3].
б) [–5; 1] ∪ (1; 5];
в) (–5; 1) ∪ [1; 5];
г) (–5; 1) ∪ (1; 5).
б) (–∞; –3] ∪ [–√͞͞͞͞͞5; –√͞͞͞͞͞2,5) ∪ [1,5;
√͞͞͞͞͞2,5]
∪ [√͞͞͞͞͞5; +∞);
в) (–∞; –3] ∪ [–√͞͞͞͞͞5; –√͞͞͞͞͞2,5) ∪
(1,5; √͞͞͞͞͞2,5) ∪ (√͞͞͞͞͞5;
+∞);
г) (–∞; –3] ∪ [–√͞͞͞͞͞5; –√͞͞͞͞͞2,5) ∪
(1,5; √͞͞͞͞͞2,5) ∪ [√͞͞͞͞͞5;
+∞).
б) (0; 3);
в) [0; 3);
г) [0; 3].
б) [1; 2] ∪ (4;
7);
в) (1; 2] ∪ [4;
7);
г) [1; 2] ∪ [4;
7).
б) (–∞; –2) ∪ (–1; 0);
в) (–∞; –2) ∪ [–1; 0);
г) (–∞; –2) ∪ [1; 0).
б) (–∞; –2) ∪ (–2; 1) ∪ (2;
3);
в) (–∞; –2) ∪ (–2; 0) ∪ (1;
3);
г) (–∞; –2) ∪ (–2; 0) ∪ (2;
4).
б) (–2; –1) ∪ (1; 4);
в) (–2; –1) ∪ (1; 2);
б) (–∞; –1) ∪ (1; +∞);
в) (–∞; –1] ∪ (1; +∞);
г) (–∞; –1) ∪ [1; +∞).
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