फलन (y=4-(x-1)2) की रेंज क्या है?
What is the range of (y=4-(x-1)2)?
Explanation opens after your attempt
A. (\(-\infty,4]\)
Concept
Since (-(x-1)2\le 0), we get \(y\le 4\). A downward parabola gives its maximum at the vertex.
Why this answer is correct
The correct answer is A. (\(-\infty,4]\). Since (-(x-1)2\le 0), we get \(y\le 4\). A downward parabola gives its maximum at the vertex.
Exam Tip
(-(x-1)2\le 0) होता है इसलिए \(y\le 4\) है। नीचे खुलने वाले परवलय में शीर्ष अधिकतम देता है।
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