फलन (f(x)=\sqrt{3x-12}) का प्रांत क्या है?
What is the domain of the function (f(x)=\sqrt{3x-12})?
Explanation opens after your attempt
A. \(x\ge 4\)
Concept
The expression inside the square root must satisfy \(3x-12\ge 0\), so \(x\ge 4\). In exams, always keep the radicand non-negative.
Why this answer is correct
The correct answer is A. \(x\ge 4\). The expression inside the square root must satisfy \(3x-12\ge 0\), so \(x\ge 4\). In exams, always keep the radicand non-negative.
Exam Tip
वर्गमूल के अंदर \(3x-12\ge 0\) होना चाहिए, इसलिए \(x\ge 4\)। परीक्षा में वर्गमूल के लिए अंदर का भाग हमेशा अशून्य या धनात्मक रखें।
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