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यदि `f:R rarr R` और `g:R rarr R` दो फलन हैं, जो क्रमशः `f(x)=2x+1` और `g(x)=x^(2)-2`से परिभाषित हैं, तो (gof) (x) और (fog) (x) ज्ञात कीजिए और दिखाइए क

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यदि `f:R rarr R` और `g:R rarr R` दो फलन हैं, जो क्रमशः `f(x)=2x+1` और `g(x)=x^(2)-2`से परिभाषित हैं, तो (gof) (x) और (fog) (x) ज्ञात कीजिए और दिखाइए कि `(fog) (x) != (gof) (x)`.
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`(gof)(x)=4x^(2)+4x-1, (fog)(x)=2x^(2)-3`
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