फलन (f(x)=\sqrt{2x-5}) के ग्राफ का प्रांत क्या है?
What is the domain of the graph of (f(x)=\sqrt{2x-5})?
Explanation opens after your attempt
Correct Answer
A. \(\left[\frac{5}{2},\infty\right\))
Concept
For the square root, \(2x-5\ge0\), so \(x\ge\frac{5}{2}\). In exams, keep the expression inside the square root non-negative.
Why this answer is correct
The correct answer is A. \(\left[\frac{5}{2},\infty\right\)). For the square root, \(2x-5\ge0\), so \(x\ge\frac{5}{2}\). In exams, keep the expression inside the square root non-negative.
Exam Tip
वर्गमूल के लिए \(2x-5\ge0\) इसलिए \(x\ge\frac{5}{2}\)। परीक्षा में वर्गमूल के अंदर की राशि अनऋणात्मक रखें।
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