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यदि f तथा g निम्न प्रकार परिभाषित हो...

यदि f तथा g निम्न प्रकार परिभाषित हो तो (gof) (x) ज्ञात कीजिए :
` f : R to R , f(x) = 2x + x^(2)`
`g : R to R , g(x) = 3x `

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