Question 1152227
{{{10}}},{{{8}}},{{{6}}},{{{4}}},{{{2}}},{{{0}}},....

the differences between each terms are:
{{{10}}}......{{{8}}}......{{{6}}}......{{{4}}}......{{{2}}}......{{{0}}}....
.....{{{-2}}}..{{{-2}}}..{{{-2}}}....{{{-2}}}....{{{-2}}}....

the differences are all the same so it is an Arithmetic sequence and the common difference is {{{d=-2}}}

then nth term is:

{{{a[n]= a[1]+d(n-1)}}}

{{{a[n]= a[1]-2(n-1)}}}