Sagot :
when solving for the value of the nth term of a geometric sequence, use the formula an = a1r^n-1
now substitute and solve
a6=4(3)^6-1
a6=4(3)^5
a6=4(243)
a6= 972
now substitute and solve
a6=4(3)^6-1
a6=4(3)^5
a6=4(243)
a6= 972