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

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

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(52800) (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.

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