Mathematics · Set Theory
Which of the following sets is non-empty?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1{x ∈ &mathbb{Z} : 2x - 1 = 0}
- 2{x ∈ &mathbb{Q} : x2 - 3 = 0}
- 3{x ∈ &mathbb{R} : x3 + 2x - 1 = 0}✓
- 4{x ∈ &mathbb{R} : x2 + 4x + 5 = 0}
Correct answer
{x ∈ &mathbb{R} : x3 + 2x - 1 = 0}
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