यदि \(f:R\to R\), (f(x)=x-2-6x+11), तो (f) का परास क्या है?

If \(f:R\to R\), (f(x)=x-2-6x+11), what is the range of (f)?

Explanation opens after your attempt
Correct Answer

A. \([2,\infty\))

Step 1

Concept

Write (x-2-6x+11=(x-3)2+2).

Step 2

Why this answer is correct

Since ((x-3)2\ge0), (f(x)\ge2).

Step 3

Exam Tip

The minimum value is (2), so the range is \([2,\infty\)). चरण 1: (x-2-6x+11=(x-3)2+2) लिखें। चरण 2: ((x-3)2\ge0), इसलिए (f(x)\ge2)। चरण 3: न्यूनतम मान (2) है, इसलिए परास \([2,\infty\)) है।

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Mathematics Answer, Explanation and Revision Hints

यदि \(f:R\to R\), (f(x)=x-2-6x+11), तो (f) का परास क्या है? / If \(f:R\to R\), (f(x)=x-2-6x+11), what is the range of (f)?

Correct Answer: A. \([2,\infty\)). Explanation: चरण 1: (x-2-6x+11=(x-3)2+2) लिखें। चरण 2: ((x-3)2\ge0), इसलिए (f(x)\ge2)। चरण 3: न्यूनतम मान (2) है, इसलिए परास \([2,\infty\)) है। / Step 1: Write (x-2-6x+11=(x-3)2+2). Step 2: Since ((x-3)2\ge0), (f(x)\ge2). Step 3: The minimum value is (2), so the range is \([2,\infty\)).

Which concept should I revise for this Mathematics MCQ?

Write (x-2-6x+11=(x-3)2+2).

What exam hint can help solve this Mathematics question?

The minimum value is (2), so the range is \([2,\infty\)). चरण 1: (x-2-6x+11=(x-3)2+2) लिखें। चरण 2: ((x-3)2\ge0), इसलिए (f(x)\ge2)। चरण 3: न्यूनतम मान (2) है, इसलिए परास \([2,\infty\)) है।