Question
On , a binary operation * is defined by . Prove that * is commutative and associative. Find the identity element for * on Also, prove that every element of is invertible.
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Question 1
If * is defined on the set R of all real numbers by
, find the identity element in R with respect to *.Question Text | On
, a binary operation * is defined by
. Prove that * is commutative and associative. Find the identity element for * on
Also, prove that every element of
is invertible. |