यदि (f(x)=x+2) और (g(x)=x-3) हों, तो ((fg)(x)) क्या होगा?
If (f(x)=x+2) and (g(x)=x-3), what is ((fg)(x))?
Explanation opens after your attempt
A. \(x^2-x-6\)
Concept
((fg)(x)=f(x)g(x)), so ((x+2)(x-3)=x-2-x-6). In multiplication, distribute both terms properly.
Why this answer is correct
The correct answer is A. \(x^2-x-6\). ((fg)(x)=f(x)g(x)), so ((x+2)(x-3)=x-2-x-6). In multiplication, distribute both terms properly.
Exam Tip
((fg)(x)=f(x)g(x)), इसलिए ((x+2)(x-3)=x-2-x-6)। गुणा में दोनों terms को distribute करें।
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