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If f:R rarrR defined by f(x+y)=f(x)+f(y)-xy-1 for all x, y in R and f(1)=1 then the number of solution of f(x)+f(y)-xy-1 for all x, y in R and f(1)=1 then the number of solutions of f(n)=n, n in N is |
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Answer» 1 |
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