What is the domain of the graph of (f(x)=\sqrt{7-2x})?फलन (f(x)=\sqrt{7-2x}) के ग्राफ का प्रांत क्या है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (\left(-\infty,\frac{7}{2}\right])(\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.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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