19
Which of the following is equivalent to Σ(n2-6n+9)- Σ(n2-6n+9)?
-1
9
л=1
19
Ο Σ(1-3)2
=10
19
Ο Σ(n-3)2
7-8
19
Ο Σ(n+3)2
7=10
19
Ο Σ(n+3)2
n=8