यदि (f(x)=3x-5) और (g(x)=x-2+4) हैं तो ((g-f)(x)) क्या होगा?
If (f(x)=3x-5) and (g(x)=x-2+4) then what is ((g-f)(x))?
Explanation opens after your attempt
A. \(x^2-3x+9\)
Concept
((g-f)(x)=g(x)-f(x)=x-2+4-(3x-5)=x-2-3x+9). Put a minus before the whole second function.
Why this answer is correct
The correct answer is A. \(x^2-3x+9\). ((g-f)(x)=g(x)-f(x)=x-2+4-(3x-5)=x-2-3x+9). Put a minus before the whole second function.
Exam Tip
((g-f)(x)=g(x)-f(x)=x-2+4-(3x-5)=x-2-3x+9)। घटाते समय पूरे दूसरे फलन पर ऋण लगाएँ।
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