Select which regular expression denote A|B? (Alternation ، Sequence ،Repetition)؟
إجابة الطالب المختصرة من خلال موقع بوابة الإجابات هي
Alternation
The correct answer is **Alternation**.
* **Alternation:** The pipe symbol `|` in regular expressions means "or". `A|B` matches either A or B.
* **Sequence:** Sequence refers to the concatenation of patterns, where patterns must occur in the specified order (e.g., `AB` matches "AB").
* **Repetition:** Repetition refers to matching a pattern multiple times, often using quantifiers like `*`, `+`, or `{n,m}` (e.g., `A*` matches zero or more occurrences of A).
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