फलन \(y=\sqrt{x^2-9}\) के ग्राफ का डोमेन क्या है?
What is the domain of the graph of \(y=\sqrt{x^2-9}\)?
Explanation opens after your attempt
A. (\(-\infty,-3]\cup[3,\infty\))
Concept
For the square root \(x^2-9\ge 0\) is required. This gives \(x\le -3\) or \(x\ge 3\).
Why this answer is correct
The correct answer is A. (\(-\infty,-3]\cup[3,\infty\)). For the square root \(x^2-9\ge 0\) is required. This gives \(x\le -3\) or \(x\ge 3\).
Exam Tip
वर्गमूल के लिए \(x^2-9\ge 0\) चाहिए। इससे \(x\le -3\) या \(x\ge 3\) मिलता है।
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