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Which of the following inequalities is represented by the interval \((-\infty,1)\cup(1,\infty)\)?

Answer and explanation

Correct answer: \(x\ne 1\)

The union \((-\infty,1)\cup(1,\infty)\) includes all real numbers less than 1 or greater than 1. Thus, the only excluded value is 1, so it represents \(x\ne 1\). Options C and D describe only one side of 1, whereas this interval includes both sides. Exam tip: Open endpoints at 1 indicate that 1 is not included.

Related tags

Linear InequalitiesInterval NotationUnion Of IntervalsNumber LineReal NumbersAlgebraic Solution Of Linear Inequalities In One VariableMathematicsClass 11 Mcq

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