I understand how to do summation notation and the formula for it (n(n+1))/2 and how that differs if n has an exponent in it, but what if you're asked to rewrite a problem in summation notation?
For example "Rewrite 1+2+3...+100 in summation notation"
and just so I have a clear understanding let's also say
"Rewrite 1^2+2^2+3^2...+100^2 in summation notation"
Thanks in advance!