फलन (f(x)=3+\frac{1}{x-2+2x+2}) का परिसर क्या है?

What is the range of (f(x)=3+\frac{1}{x-2+2x+2})?

Explanation opens after your attempt
Correct Answer

A. ( (3,4] )

Step 1

Concept

The denominator (x-2+2x+2=(x+1)2+1\ge 1). So (\frac{1}{x-2+2x+2}\in(0,1]), hence the range is ((3,4]).

Step 2

Why this answer is correct

The correct answer is A. ( (3,4] ). The denominator (x-2+2x+2=(x+1)2+1\ge 1). So (\frac{1}{x-2+2x+2}\in(0,1]), hence the range is ((3,4]).

Step 3

Exam Tip

हर (x-2+2x+2=(x+1)2+1\ge 1) है। इसलिए (\frac{1}{x-2+2x+2}\in(0,1]), अतः परिसर ((3,4]) है।

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Mathematics Answer, Explanation and Revision Hints

फलन (f(x)=3+\frac{1}{x-2+2x+2}) का परिसर क्या है? / What is the range of (f(x)=3+\frac{1}{x-2+2x+2})?

Correct Answer: A. ( (3,4] ). Explanation: हर (x-2+2x+2=(x+1)2+1\ge 1) है। इसलिए (\frac{1}{x-2+2x+2}\in(0,1]), अतः परिसर ((3,4]) है। / The denominator (x-2+2x+2=(x+1)2+1\ge 1). So (\frac{1}{x-2+2x+2}\in(0,1]), hence the range is ((3,4]).

Which concept should I revise for this Mathematics MCQ?

The denominator (x-2+2x+2=(x+1)2+1\ge 1). So (\frac{1}{x-2+2x+2}\in(0,1]), hence the range is ((3,4]).

What exam hint can help solve this Mathematics question?

हर (x-2+2x+2=(x+1)2+1\ge 1) है। इसलिए (\frac{1}{x-2+2x+2}\in(0,1]), अतः परिसर ((3,4]) है।