Question

Se da f (x)=×^2+1 Calculati f (1)+f (2 )+...+f (10)

Answer 1

f(1)=1²+1=2
f(2)=2²+1=5
f(3)=3²+1=10
f(4)=4²+1=17
f(5)=5²+1=26
f(6)=6²+1=37
f(7)=7²+1=50
f(8)=8²+1=65
f(9)=9²+1=82
f(10)=10²+1=101
S=395