Question

Arrange the following expressions in increasing order of degree.

• A. n∑i=0i2=(n2+n)(2n+1)6
• B. n∑i=(n2+n)(2n+1)6
• C. n∑=(n2+n)(2n+1)6
• D. n∑i=0i⊂2+n)(2n+1)6

Answer 1

n∑i=0i2=(n2+n)(2n+1)6