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.

Question

Sn: 2+5+8+...+(3n-1)=n(1+3n)/2

Answer 1

S1 = 1(4)/2 = 2 check
S2 = 2+5 = 7 = ? 2(7)/2 = 7 check
S3 = 7+8 = 15 = ? 3 (1+9) /2 = 3*5 = 15 check

Answer 2

Thank you so much !

Answer 3

You are welcome.