How many terms of the series 3, -6, +12, - 24, + ..... are needed to make a total of 1 - 2\(^8\)?

Michealubegirl

5 years ago

where did n-1 comes from i thought it only n

Dammy8957

2 years ago

formula for sum of g.p = a-r^n/ 1-r
where not a-r^n-1/ 1-r

Ichini

1 year ago

How did 1-(-2) become -2