यदि (f(x)=x-4) और (g(x)=x-2+2x) हों, तो ((g+f)(x)) क्या है?
If (f(x)=x-4) and (g(x)=x-2+2x), what is ((g+f)(x))?
Explanation opens after your attempt
A. \(x^2+3x-4\)
Concept
((g+f)(x)=g(x)+f(x)=x-2+2x+x-4=x-2+3x-4). In addition, changing the order does not change the answer.
Why this answer is correct
The correct answer is A. \(x^2+3x-4\). ((g+f)(x)=g(x)+f(x)=x-2+2x+x-4=x-2+3x-4). In addition, changing the order does not change the answer.
Exam Tip
((g+f)(x)=g(x)+f(x)=x-2+2x+x-4=x-2+3x-4)। addition में order बदलने से answer नहीं बदलता।
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