यदि (f(x)=3x+5) और (g(x)=x-2-4) हैं, तो ((g-f)(x)) ज्ञात कीजिए।
If (f(x)=3x+5) and (g(x)=x-2-4), find ((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). While subtracting, apply the minus sign to the whole (f(x)).
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). While subtracting, apply the minus sign to the whole (f(x)).
Exam Tip
((g-f)(x)=g(x)-f(x)=x-2-4-(3x+5)=x-2-3x-9)। घटाते समय पूरे (f(x)) पर ऋण लगाएँ।
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