फलन (f(x)=\sqrt{x-2}+\sqrt{9-x}) का डोमेन क्या है?
What is the domain of (f(x)=\sqrt{x-2}+\sqrt{9-x})?
Explanation opens after your attempt
Correct Answer
A. ([2,9])
Concept
The two conditions \(x-2\ge0\) and \(9-x\ge0\) together give \(2\le x\le9\). In exams take the common interval for two square roots.
Why this answer is correct
The correct answer is A. ([2,9]). The two conditions \(x-2\ge0\) and \(9-x\ge0\) together give \(2\le x\le9\). In exams take the common interval for two square roots.
Exam Tip
दोनों शर्तें \(x-2\ge0\) और \(9-x\ge0\) मिलकर \(2\le x\le9\) देती हैं। परीक्षा में दो वर्गमूल हों तो common interval लें।
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