फलन (f(x)=x-2-4) का परिसर क्या है?
What is the range of (f(x)=x-2-4)?
Explanation opens after your attempt
A. \([-4,\infty\))
Concept
The minimum value of \(x^2\) is (0), so the minimum value of \(x^2-4\) is (-4). Hence the range is \([-4,\infty\)).
Why this answer is correct
The correct answer is A. \([-4,\infty\)). The minimum value of \(x^2\) is (0), so the minimum value of \(x^2-4\) is (-4). Hence the range is \([-4,\infty\)).
Exam Tip
\(x^2\) का न्यूनतम मान (0) है, इसलिए \(x^2-4\) का न्यूनतम मान (-4) है। अतः परिसर \([-4,\infty\)) है।
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