यदि (f(x)=x-2+x+1) और (g(x)=x-2-x+1) हैं, तो ((f-g)(x)) क्या है?
If (f(x)=x-2+x+1) and (g(x)=x-2-x+1), what is ((f-g)(x))?
Explanation opens after your attempt
A. (2x)
Concept
((f-g)(x)=x-2+x+1-\(x^2-x+1\)=2x). Open brackets and change signs carefully.
Why this answer is correct
The correct answer is A. (2x). ((f-g)(x)=x-2+x+1-\(x^2-x+1\)=2x). Open brackets and change signs carefully.
Exam Tip
((f-g)(x)=x-2+x+1-\(x^2-x+1\)=2x)। कोष्ठक खोलकर चिह्न सावधानी से बदलें।
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