यदि (f(x)=x-2-4) और (g(x)=\sqrt{x+4}), तो (\(g\circ f\)(x)) क्या होगा?
If (f(x)=x-2-4) and (g(x)=\sqrt{x+4}), what is (\(g\circ f\)(x))?
Explanation opens after your attempt
A. \(\sqrt{x^2}\)
Concept
(\(g\circ f\)(x)=g(f(x))).
Why this answer is correct
Put \(x^2-4\) in place of (x) in (g).
Exam Tip
(g(f(x))=\sqrt{\(x^2-4\)+4}=\sqrt{x-2}). चरण 1: (\(g\circ f\)(x)=g(f(x))) है। चरण 2: (g) में (x) के स्थान पर \(x^2-4\) रखें। चरण 3: (g(f(x))=\sqrt{\(x^2-4\)+4}=\sqrt{x-2})।
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