यदि (f(x)=\frac{1}{x+1}) हो तो (\(f\circ f\)(x)) क्या होगा?
If (f(x)=\frac{1}{x+1}), what is (\(f\circ f\)(x))?
Explanation opens after your attempt
Correct Answer
A. \(\frac{x+1}{x+2}\)
Concept
(\(f\circ f\)(x)=f(f(x))).
Why this answer is correct
(f(f(x))=\frac{1}{\frac{1}{x+1}+1}=\frac{x+1}{x+2}).
Exam Tip
In fractional compositions, simplify the denominator carefully. चरण 1: (\(f\circ f\)(x)=f(f(x))) है। चरण 2: (f(f(x))=\frac{1}{\frac{1}{x+1}+1}=\frac{x+1}{x+2})। चरण 3: भिन्न वाले समिश्र फलनों में हर को सावधानी से सरल करें।
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