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Let N be the set of natural numbers. Suppose f:N→N is a function satisfying the following conditions (a)f(m+n)=f(m)+f(n)(b)f(2)=2 The value of 1720∑k=1f(k) is

Answer» Let N be the set of natural numbers. Suppose f:NN is a function satisfying the following conditions
(a)f(m+n)=f(m)+f(n)(b)f(2)=2
The value of 1720k=1f(k) is


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