फलन (f(x)=\sqrt{x-1}+\sqrt{7-x}) का डोमेन क्या है?
What is the domain of (f(x)=\sqrt{x-1}+\sqrt{7-x})?
Explanation opens after your attempt
Correct Answer
A. ([1,7])
Concept
The conditions \(x-1\ge 0\) and \(7-x\ge 0\) together give \(1\le x\le 7\). In exams take the intersection for the combined domain.
Why this answer is correct
The correct answer is A. ([1,7]). The conditions \(x-1\ge 0\) and \(7-x\ge 0\) together give \(1\le x\le 7\). In exams take the intersection for the combined domain.
Exam Tip
शर्तें \(x-1\ge 0\) और \(7-x\ge 0\) मिलकर \(1\le x\le 7\) देती हैं। परीक्षा में संयुक्त डोमेन के लिए प्रतिच्छेद लें।
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