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What is the domain of (f(x)=\frac{x+2}{x^2-4})?फलन (f(x)=\frac{x+2}{x^2-4}) का डोमेन क्या है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (\mathbb{R}\setminus{-2,2})(\mathbb{R}\setminus{-2,2})
The original denominator is (x^2-4=(x-2)(x+2)), so (x\ne -2,2). In exams remove zeros of the original denominator before cancellation.मूल हर (x^2-4=(x-2)(x+2)) है, इसलिए (x\ne -2,2)। परीक्षा में काटने से पहले मूल हर के शून्य हटाएं।
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