Question

Geometric series;


Question;

1. Summation of 5(7/8)^n
where n =0

Answer 1

any number with the exponent 0 is 1, that is \(\large x^0=1 \)
that means \(\large 5(\frac{7}{8})^0=5 \times 1=5 \)
sum of 5 equals 5....

Answer 2

I hope there's some sense in it :)

Answer 3

that's right

Answer 4

phew! :)