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What is the domain of (f(x)=\frac{x-4}{x^2-16})?फलन (f(x)=\frac{x-4}{x^2-16}) का डोमेन क्या है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (\mathbb{R}\setminus{-4,4})(\mathbb{R}\setminus{-4,4})
The denominator is (x^2-16=(x-4)(x+4)), so (x=\pm4) are excluded. In exams apply restrictions from the original denominator before cancellation.हर (x^2-16=(x-4)(x+4)) है इसलिए (x=\pm4) हटेंगे। परीक्षा में काटने से पहले मूल हर की रोक लगाएं।
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