Question: Let D: R[x] - R[x] be the derivative mapping, i.e. D(f) = f'. Is D a ring homo- morphism? Justify your

Let D: R[x] - R[x] be the derivative mapping,
Let D: R[x] - R[x] be the derivative mapping, i.e. D(f) = f'. Is D a ring homo- morphism? Justify your

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