फलन (f(x)=7-(x-3)2) की रेंज क्या है?
What is the range of (f(x)=7-(x-3)2)?
Explanation opens after your attempt
A. (\(-\infty,7]\)
Concept
Since ((x-3)2\ge0), (7-(x-3)2\le7). In exams identify the maximum value of a downward-opening parabola.
Why this answer is correct
The correct answer is A. (\(-\infty,7]\). Since ((x-3)2\ge0), (7-(x-3)2\le7). In exams identify the maximum value of a downward-opening parabola.
Exam Tip
क्योंकि ((x-3)2\ge0), इसलिए (7-(x-3)2\le7)। परीक्षा में नीचे खुलने वाले परवलय की maximum value पहचानें।
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