Question 731307

Given a geometric sequence with the first term {{{a[1]}}} and the common ratio {{{r}}}, the nth (or general) term is given by:

{{{a[n] = a[1] * r^(n-1)}}}

if {{{a[1]=8}}}, {{{r=1/2}}}

then

{{{a[n] = a[1] * r^(n -1)}}}

{{{a[n] = 8 * (1/2)^(n -1)}}}