Question

find the fifth term from the end of the g.p 8,4,2,1--------1/1024

Answer 1

by given
first term(a)= 8
ratio(r) = second term /first term= 4/8= 0.5
n th term of g.p = first term × r^(n-1)
= 8 × (0.5)^(5-1)
= 8 × (0.5)^4
=0.5