यदि (f(x)=\sqrt{x}) और डोमेन ([4,16]) है, तो रेंज क्या होगी?
If (f(x)=\sqrt{x}) and the domain is ([4,16]), what is the range?
Explanation opens after your attempt
A. ([2,4])
Concept
\(\sqrt{x}\) is increasing, so endpoint values are \(\sqrt{4}=2\) and \(\sqrt{16}=4\). In exams use monotonicity.
Why this answer is correct
The correct answer is A. ([2,4]). \(\sqrt{x}\) is increasing, so endpoint values are \(\sqrt{4}=2\) and \(\sqrt{16}=4\). In exams use monotonicity.
Exam Tip
\(\sqrt{x}\) बढ़ता हुआ फलन है, इसलिए सिरों की वैल्यू \(\sqrt{4}=2\) और \(\sqrt{16}=4\) हैं। परीक्षा में monotonicity का उपयोग करें।
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