Question

A) [-1;3); b) [4, 7;+бесконечность)

Answer 1

Ответ:

см рис

Пошаговое объяснение:

вроде так

Answer 2

It seems like you've provided two sets of intervals:

A) $[-1, 3)$ B) $[4, 7; +\infty)$

Let me explain these intervals:

A) $[-1, 3)$

• This is a closed interval on the left side (square bracket $[-$ indicates inclusivity) and an open interval on the right side (parenthesis $3)$ indicates exclusivity).
• It includes all real numbers greater than or equal to -1 but less than 3.
• In interval notation, this can be written as $[-1, 3)$ or in set notation as $\{x \mid -1 \leq x < 3\}$.

B) $[4, 7; +\infty)$

• This is a closed interval on the left side (square bracket $[4$ indicates inclusivity) and an unbounded interval on the right side ($+\infty)$ indicates that it extends indefinitely to the right.
• It includes all real numbers greater than or equal to 4.
• In interval notation, this can be written as $[4, +\infty)$ or in set notation as $\{x \mid x \geq 4\}$.

If you have any further questions or need clarification, please feel free to ask.