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ntProve that the mapping f:N→N defined by f(x) = (x+1) when x is odd and (x-1) when x is even, is one-one and onto.n |
| Answer» ntProve that the mapping f:N→N defined by f(x) = (x+1) when x is odd and (x-1) when x is even, is one-one and onto.n | |