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If (f(x)=\frac{1}{x-1}+\frac{1}{x+1}), what is the domain?यदि (f(x)=\frac{1}{x-1}+\frac{1}{x+1}), तो प्रांत क्या है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (\mathbb{R}-{-1,1})(\mathbb{R}-{-1,1})
Both denominators must be non-zero, so (x\ne 1) and (x\ne -1). In sums of rational functions, check every denominator.दोनों हर शून्य नहीं होने चाहिए, इसलिए (x\ne 1) और (x\ne -1)। योग वाले रैशनल फलन में सभी हर जांचें।
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