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tmua.me Extreme Set A Paper 2 · Q16

Paper 2Logic & proofNumber & countingAlgebra

Consider the inequality

an<1+n(a−1).a^n<1+n(a-1).

Which of the following statements are true?

  1. There exists a positive integer nn for which the inequality holds for every real number a<−1a<-1.
  2. For every real number a<−1a<-1, there exists a positive integer nn for which the inequality holds.
  3. For every real number a<−1a<-1, there exists a positive integer NN for which the inequality holds for every integer n≥Nn\ge N.
ANone of them
BI and II only
CII and III only
DII only
EI, II and III

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