Word Count : 317

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मान लीजिए कि हमारे पास दो फलन हैं (f(x)) और (g(x))। हमें जांचना है कि [ (f \circ g)(x) = f(g(x)) = x \quad \text{और} \quad (g \circ f)(x) = g(f(x)) = x ] कुछ विशेष (x) के लिए। पहले (f \circ g) की जांच करते हैं। मान लें [ f(x) = _________ ___ ________ ______ ____ ________ __________ _______ _________.
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