Question

If ∗is a binary operation on defined by ∗=++1, ∀∈,then show that (,∗) is an abelian group.

Answer 1

Answer:

for all x belongs to R

for all x belongs to RStep-by-step explanation:

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Answer 2

Answer:

a sharp-tasting crystalline acid present in the juice of lemons and other sour fruits. It is made commercially by the fermentation of sugar and used as a flavouring and setting agent.