Question: https://eclass.yorku.ca/eclass/mod/quiz/attempt.php?attempt=241085 Let r be a positive integer, then (r - 1)! O a. . equals =0o O b. equals -r O c. does not exist

https://eclass.yorku.ca/eclass/mod/quiz/attempt.php?attempt=241085 Let r be a positive integer, then (r - 1)! O a. . equals =0o O b. equals -r O c. does not exist O d. equals r! O e, equals (r - 1) Of. equals 0 g. equals oo O h. equals i. equals - (r - 1)

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