SOLUTION: A function is defined by f(0)=0 and f(n)=f(n-1)+2n, for n > 0. Find f(4).

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Question 1174550: A function is defined by f(0)=0 and f(n)=f(n-1)+2n, for n > 0. Find f(4).
Answer by ikleyn(52797) About Me  (Show Source):
You can put this solution on YOUR website!
.

You have an EXPLICIT formula to move from n= 0 to n= 1;

    then from n= 1 to n= 2;

    then from n= 2 to n= 3;

    then from n= 3 to n= 4.


So, do it as instructed, using the formula.


You are FULLY INSTRUCTED.