Question

The third term of a G.P. is 8 and sixth term is 64. Find its 9th term.

Answer 1

N th term of GP= ar^(n-1) 
for n=3, 
ar^2=8 ......eq 1 
for n=6, 
ar^5=64 ......eq 2 

solve eq 1 and eq 2 
a=2, r=2 
for n=9 
ar^8=2*2^8=2^9=512

I hope the answer is clear
If you like it follow me
Pls mark me as brainlist
#Nisha