यदि (f(x)=x+1), (g(x)=x-1) और (h(x)=x-2) हों, तो ((f+g+h)(x)) क्या होगा?
If (f(x)=x+1), (g(x)=x-1), and (h(x)=x-2), what is ((f+g+h)(x))?
Explanation opens after your attempt
A. \(x^2+2x\)
Concept
((f+g+h)(x)=(x+1)+(x-1)+x-2=x-2+2x). The constants (1) and (-1) cancel out.
Why this answer is correct
The correct answer is A. \(x^2+2x\). ((f+g+h)(x)=(x+1)+(x-1)+x-2=x-2+2x). The constants (1) and (-1) cancel out.
Exam Tip
((f+g+h)(x)=(x+1)+(x-1)+x-2=x-2+2x)। constants (1) और (-1) cancel हो जाते हैं।
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