An infinite geometric series has common ratio -1/3 and sum 25 What is the second term of the sequence?

S= a / (1 - r)

25 = a / (1 - (-1/3))

25 = a / (1 1/3)

a =25 x (1 1/3)

a =33 1/3 - This is the first term

33 1/3 x -1/3 =-11 1/9 This is the second term.

I think you mean -(11 1/9)

Yes that is what was written.