फलन (f(x)=\sqrt{7-2x}) के ग्राफ का प्रांत क्या है?
What is the domain of the graph of (f(x)=\sqrt{7-2x})?
Explanation opens after your attempt
Correct Answer
A. (\left\(-\infty,\frac{7}{2}\right]\)
Concept
For the square root, \(7-2x\ge 0\), so \(x\le \frac{7}{2}\). In exams, keep the expression inside the square root non-negative.
Why this answer is correct
The correct answer is A. (\left\(-\infty,\frac{7}{2}\right]\). For the square root, \(7-2x\ge 0\), so \(x\le \frac{7}{2}\). In exams, keep the expression inside the square root non-negative.
Exam Tip
वर्गमूल के लिए \(7-2x\ge 0\) इसलिए \(x\le \frac{7}{2}\)। परीक्षा में वर्गमूल के अंदर की राशि अनऋणात्मक रखें।
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