यदि (f(x)=x+2) और (g(x)=x-3) हैं तो ((fg)(x)) किसके बराबर है?
If (f(x)=x+2) and (g(x)=x-3) then ((fg)(x)) is equal to which expression?
Explanation opens after your attempt
A. \(x^2-x-6\)
Concept
((fg)(x)=f(x)g(x)=(x+2)(x-3)=x-2-x-6). In product of functions expand algebraically with care.
Why this answer is correct
The correct answer is A. \(x^2-x-6\). ((fg)(x)=f(x)g(x)=(x+2)(x-3)=x-2-x-6). In product of functions expand algebraically with care.
Exam Tip
((fg)(x)=f(x)g(x)=(x+2)(x-3)=x-2-x-6)। फलनों के गुणन में बीजगणितीय विस्तार सही रखें।
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