यदि (f(x)=2x-2+x) और (g(x)=x-2-x) हों, तो ((2f-g)(x)) क्या होगा?
If (f(x)=2x-2+x) and (g(x)=x-2-x), what is ((2f-g)(x))?
Explanation opens after your attempt
A. \(3x^2+3x\)
Concept
(2f(x)=4x-2+2x), then (4x-2+2x-\(x^2-x\)=3x-2+3x). Find (2f(x)) first.
Why this answer is correct
The correct answer is A. \(3x^2+3x\). (2f(x)=4x-2+2x), then (4x-2+2x-\(x^2-x\)=3x-2+3x). Find (2f(x)) first.
Exam Tip
(2f(x)=4x-2+2x), फिर (4x-2+2x-\(x^2-x\)=3x-2+3x)। पहले (2f(x)) निकालें।
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