(C)f:N →N: f(x) = x2 + x + 1 is (i)one-one and onto (ii)one-one and into (iii)many-one


(C)f:N →N: f(x) = x2 + x + 1 is
(i)one-one and onto
(ii)one-one and into
(iii)many-one and onto
(iv)many one and into


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