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What is the domain of (f(x)=\sqrt{|x|-2})?फलन (f(x)=\sqrt{|x|-2}) का प्रांत क्या है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: ((-\infty,-2]\cup[2,\infty))((-\infty,-2]\cup[2,\infty))
The radicand needs (|x|-2\ge 0), so (|x|\ge 2). View absolute value inequalities on a number line.वर्गमूल के लिए (|x|-2\ge 0) अर्थात (|x|\ge 2) चाहिए। निरपेक्ष मान की असमता को संख्या रेखा पर देखें।
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