यदि (f(x)=\frac{1}{x-1}+\frac{1}{x+1}), तो प्रांत क्या है?
If (f(x)=\frac{1}{x-1}+\frac{1}{x+1}), what is the domain?
Explanation opens after your attempt
Correct Answer
A. \(\mathbb{R}-{-1,1}\)
Concept
Both denominators must be non-zero, so \(x\ne 1\) and \(x\ne -1\). In sums of rational functions, check every denominator.
Why this answer is correct
The correct answer is A. \(\mathbb{R}-{-1,1}\). Both denominators must be non-zero, so \(x\ne 1\) and \(x\ne -1\). In sums of rational functions, check every denominator.
Exam Tip
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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