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What is the range of (f(x)=\sqrt{x^2})?फलन (f(x)=\sqrt{x^2}) की रेंज क्या है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: ([0,\infty))([0,\infty))
(\sqrt{x^2}=|x|), so the output is never negative. In exams treat (\sqrt{x^2}) as (|x|), not simply (x).(\sqrt{x^2}=|x|) होता है इसलिए आउटपुट कभी ऋणात्मक नहीं होगा। परीक्षा में (\sqrt{x^2}) को (x) नहीं बल्कि (|x|) मानें।
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