फलन (f(x)=\sqrt{x+4}-6) की रेंज क्या है?
What is the range of (f(x)=\sqrt{x+4}-6)?
Explanation opens after your attempt
Correct Answer
A. \([-6,\infty\))
Concept
\(\sqrt{x+4}\ge 0\), so \(\sqrt{x+4}-6\ge -6\). In exams an outside subtraction shifts the range downward.
Why this answer is correct
The correct answer is A. \([-6,\infty\)). \(\sqrt{x+4}\ge 0\), so \(\sqrt{x+4}-6\ge -6\). In exams an outside subtraction shifts the range downward.
Exam Tip
\(\sqrt{x+4}\ge 0\), इसलिए \(\sqrt{x+4}-6\ge -6\)। परीक्षा में बाहर घटाई गई संख्या रेंज को नीचे शिफ्ट करती है।
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