+0

# pls help fast guys

0
68
2
+108

Let

$$f(n) = \left\{ \begin{array}{cl} n^3+2n-1 &\text{ if }n>1, \\ n-1 &\text{ if }n \le 1. \end{array} \right.$$

Find $$f(0)+f(1)+f(2).$$

Sep 7, 2020

#2
+31103
+4

n = 0

n< 1 so f(0) = n-1 or f(0) = -1

n = 1 so f(1) = n-1 or f(1) = 0

n = 2

n>1 so f(2) = n^3 + 2n -1 or f(2) = 2^3 + 2*2 - 1  so f(2) = 11

I'll let you add them up..

Sep 7, 2020