Toggle navigation
Aliensbrain
Home
Topics
Quizzes
Notebooks
Community
Sign in
math & puzzles Online Quiz - 7
1^2+2^2+3^2=?...
1^2+2^2+3^2=?
general knowledge
math & puzzles
n(n+1)/2
n(n+1)(2n+1)/6
[n(n+1)]^2
all of the above
Show answer
Correct Option:
B
Find more quizzes: