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tmua.me Medium Set F Paper 2 · Q4

Paper 2Logic & proof

For a particular real number xx, consider the statement

S:If x2<9, then x>1.S:\quad \text{If }x^2<9,\text{ then }x>1.

Which of the following statements about xx is logically equivalent to SS?

A−3<x≤1-3<x\leq1
Bx>1x>1
Cx≤−3 or x>1x\leq-3\text{ or }x>1
Dx<−3 or x≥1x<-3\text{ or }x\geq1
E1<x<31<x<3

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