CSCI-190-Exam-I-Practice.docx - CSCI 190 Exam I Practice 1)...

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CSCI 190 Exam IPractice1)a)Write the contrapositive of the following conditional statementIf it is raining, then the streets are wet.b)Write the negation of the following:Some Mt. SAC students are international students.c)Express the following argument symbolically and determine if it is valid:If I study hard, then Iget A’s or I get rich.I don’t get A’s and I don’t get rich.Therefore I didn’t study hard.2)Prove or disprove each of the following:a)For the domain of real numbers,)(2xxxb)For the domain of integers,
3)Prove that93nis odd if and only ifnis even.4)Prove that if
5)Prove that there is no largest integer.
7)Compute the Boolean ProductABefor1001Aand0011B8)a)Sketchx  for x in[ 2,2]b)Show:fZZZdefined as(,)f m nmnis onto.Justify your answer.9)Find the close form (non-recursive form)of the recursive sequence

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