1.

If (G, ^(**)) is a group such that a ^(**)b=b^**a for two element a and b, then

Answer»

`a^(-1**)B^(-1)=b^(-1**)a^(-1)`
`a^(**)b=a^(-1**)b^(-1)`
`a^(-1**)b=a^**b^(-1)`
NONE of these

Answer :A


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