Question 1159595


given:


{{{a[1]=3}}}
{{{r=-2}}}
{{{n=5}}}

=> it’s geometric sequence

{{{n}}}th term formula is:

{{{a[n]=a[1]*r^(n-1)}}}.......plug in given data

{{{a[5]=3*(-2)^(5-1)}}}
{{{a[5]=3*(-2)^4}}}
{{{a[5]=3*16}}}
{{{a[5]=48}}}