किस फलन का डोमेन \(\mathbb{R}\setminus{-3,3}\) है?
Which function has domain \(\mathbb{R}\setminus{-3,3}\)?
Explanation opens after your attempt
Correct Answer
A. (f(x)=\frac{x}{x-2-9})
Concept
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.
Why this answer is correct
The correct answer is A. (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.
Exam Tip
\(\frac{x}{x^2-9}\) 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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