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What is the range of (f:R\to R), (f(x)=x^2+4)?फलन (f:R\to R), (f(x)=x^2+4) का परास कौन-सा है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: ([4,\infty))([4,\infty))
Step 1: For every real (x), (x^2\ge 0). Step 2: Therefore (x^2+4\ge 4). Step 3: The minimum value is (4), so the range is ([4,\infty)).चरण 1: किसी भी वास्तविक (x) के लिए (x^2\ge 0)। चरण 2: इसलिए (x^2+4\ge 4)। चरण 3: न्यूनतम मान (4) है, इसलिए परास ([4,\infty)) है।
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