फलन (f(x)=\operatorname{sgn}(2-x)) में (x>2) होने पर मान क्या होगा?

For (f(x)=\operatorname{sgn}(2-x)), what is the value when (x>2)?

Explanation opens after your attempt
Correct Answer

A. (-1)

Step 1

Concept

If (x>2), then (2-x<0). Hence (\operatorname{sgn}(2-x)=-1).

Step 2

Why this answer is correct

The correct answer is A. (-1). If (x>2), then (2-x<0). Hence (\operatorname{sgn}(2-x)=-1).

Step 3

Exam Tip

यदि (x>2), तो (2-x<0)। इसलिए (\operatorname{sgn}(2-x)=-1) है।

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Mathematics Answer, Explanation and Revision Hints

फलन (f(x)=\operatorname{sgn}(2-x)) में (x>2) होने पर मान क्या होगा? / For (f(x)=\operatorname{sgn}(2-x)), what is the value when (x>2)?

Correct Answer: A. (-1). Explanation: यदि (x>2), तो (2-x<0)। इसलिए (\operatorname{sgn}(2-x)=-1) है। / If (x>2), then (2-x<0). Hence (\operatorname{sgn}(2-x)=-1).

Which concept should I revise for this Mathematics MCQ?

If (x>2), then (2-x<0). Hence (\operatorname{sgn}(2-x)=-1).

What exam hint can help solve this Mathematics question?

यदि (x>2), तो (2-x<0)। इसलिए (\operatorname{sgn}(2-x)=-1) है।