Question 1093240
common ratio,  {{{-1/2}}}


If follow the formula, with the factor 6 on all the terms,


{{{6(1/(1-(-1/2)))}}}

{{{6(1/(1+1/2))}}}

{{{6(1/(3/2))}}}

{{{6(2/3)}}}

{{{(6*2)/3}}}

{{{2*2}}}

{{{highlight(4)}}}