Question

помогите пожалйста 1 и 2

Answer 1

1.
1) (-8; 6]
-∞_____-8/////////////0//////////.6______∞

[-5; 8]
-∞_______.-5\\\\\\\\0\\\\\\\\\\\\\\\\.8___∞

Пересечение:
-∞_______.-5\\\\\\\\0\\\\\\\\\\\\.6___ ∞
[-5; 6]


2)
(-4; ∞)
-∞_______-4\\\\\\\\0\\\\\\\\\\\\\\\\\\\\\\\\∞

(-5; 0]
-∞_____-5\\\\\\\\\\\\.0____________∞

Пересечение:
-∞_______-4\\\\\\\\.0____________∞
(-4; 0]


2.
1) [-8; 2]
-∞_____.-8/////////////0///.2______________∞

[1; 9]
-∞______________0//////////////////.9______∞

Объединение:
-∞_____-8/////////////0///////////////////.9______∞
[-8; 9]


2) [-3; ∞]
-∞_____.-3/////////0/////////////////////////∞

(-∞; 2]
-∞///////////////////////0//////.2__________∞

Объединение:
-∞////////////////////////0///////////////////////////∞
(-∞; ∞)