English > QUESTIONS & ANSWERS > College of AlamedaENGLISH 1APop Quiz #12.2 (Simplify CFG)_ SP21_ CS-154 Sec 04 - Formal Lang and Com (All)
College of AlamedaENGLISH 1APop Quiz #12.2 (Simplify CFG)_ SP21_ CS-154 Sec 04 - Formal Lang and Comput
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Pop Quiz #12.2 (Simplify CFG) Due Mar 23 at 11:59pm Points 9 Questions 9 Available after Mar 23 at 1:30pm Time Limit None Allowed Attempts 2 Attempt History Attempt Time Score LATEST Attempt 1 83... minutes 8.67 out of 9 Correct answers will be available on Mar 24 at 12am. Score for this attempt: 8.67 out of 9 Submitted Mar 23 at 3:03pm This attempt took 83 minutes. Take the Quiz Again Question 1 1 / 1 pts A variable A is useful if it generates a string of terminals it is reachable from the start symbol S. In other words, if there is a derivation, as shown below, then variable A is useful. Otherwise, A is useless. For the following grammar, which of the following variables are useless? S --> aSb S --> ϵ [Show More]
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