document.write( "Question 251885: The sum of the integers from 1 to n is n(n+1) over 2. The sum of the squares of the integers from 1 through n is n(n+1)(2n+1) over 6 . The sum of the cubes of the integers from 1 through n is n^2(n+1)^2 over 4 . Use the appropriate expressions to find the following values. \r
\n" ); document.write( "\n" ); document.write( "A. The sum of the integers from 1 to 30.\r
\n" ); document.write( "\n" ); document.write( "i just dont underatand what it wants me to do, i looked in the book but i cant find any examples to help explain what i am suppose to even solve. I am just not sure where i should even start.
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Algebra.Com's Answer #183579 by richwmiller(17219)\"\" \"About 
You can put this solution on YOUR website!
Add up the integers 12,3,4,5...28, 29,30 using the formula
\n" ); document.write( "Sum(n)=n(n+1)/2
\n" ); document.write( "30*31/2=15*31
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