SOLUTION: On the set R of real number an operation* is defined by x*y=(1 x)(1 y) a) is * commutative b) find the identity element for * c) find the inverse of an element a if it exist

SOLUTION: On the set R of real number an operation* is defined by xy=(1 x)(1 y) a) is commutative b) find the identity element for * c) find the inverse of an element a if it exist

Question 882547: On the set R of real number an operation* is defined by x*y=(1 x)(1 y)
a) is * commutative
b) find the identity element for *
c) find the inverse of an element a if it exist
Answer by Edwin McCravy(20054) (Show Source): You can put this solution on YOUR website!

Sorry, but (1 x)(1 y) doesn't make any mathematical 
sense with just blank spaces between the 1's
and the letters x and y.  Did you mean 

(1+x)(1+y)?

or this (1+x)(1-y)?

or this (1-x)(1-y)?

or this (1/x)(1+y)?

or this (1+x)(1/y)?

or this (1+x)(1-y)?

or this (1/x)(1-y)?

etc.?  etc.?

???????????????????

Edwin

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