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Which function has domain (\mathbb{R}\setminus{-3,3})?किस फलन का डोमेन (\mathbb{R}\setminus{-3,3}) है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (f(x)=\frac{x}{x^2-9})(f(x)=\frac{x}{x^2-9})
In (\frac{x}{x^2-9}), the denominator is ((x-3)(x+3)), so (x=\pm3) are removed. In exams remove denominator zero values in rational functions.(\frac{x}{x^2-9}) में हर ((x-3)(x+3)) है, इसलिए (x=\pm3) हटते हैं। परीक्षा में rational function में denominator zero values हटाएं।
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