Question 1178481

{{{4}}},{{{ 2}}}, {{{1}}}, {{{0.5}}}, . . .


divide second term by first term

{{{r=2/4=1/2}}}

divide third term by second term

{{{r=1/2=1/2}}}

divide fourth term by third term

{{{r=0.5/1=0.5 =1/2}}}


all are same , so common ratio is {{{r=1/2}}} or {{{r=0.5}}}

the sequence {{{is}}} geometric