animallover18 animallover18 26-11-2018 Mathematics contestada A statement Sn about the positive integers is given. Write statements S1, S2, and S3, and show that each of these statements is true. Show your work. Sn: 1^2 + 4^2 + 7^2 + . . . + (3n - 2)^2 = n(6n^2-3n-1 / 2