फलन (f(x)=3-\sqrt{x-1}) का अधिकतम मान क्या है?
What is the maximum value of (f(x)=3-\sqrt{x-1})?
Explanation opens after your attempt
A. (3)
Concept
Since \(\sqrt{x-1}\ge 0\), \(3-\sqrt{x-1}\le 3\). The maximum value (3) occurs at (x=1).
Why this answer is correct
The correct answer is A. (3). Since \(\sqrt{x-1}\ge 0\), \(3-\sqrt{x-1}\le 3\). The maximum value (3) occurs at (x=1).
Exam Tip
\(\sqrt{x-1}\ge 0\), इसलिए \(3-\sqrt{x-1}\le 3\)। अधिकतम मान (3) (x=1) पर मिलता है।
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