Question

What is the value of X in the following geometric sequence
X , 64 , ___ , ___ , 8

Answer 1

hi
help me

Answer 2

no

Answer 3

not right

Answer 4

it is 256

Answer 5

but i don't know why

Answer 6

128

Answer 7

why?

Answer 8

you have the last term = 8 = ar^4
second term =64=ar

divide these eq

1/2=r

if ar=64

then a(first term)=64*2=128

Answer 9

ohhh I see

Answer 10

u got it now? or have more doubts

Answer 11

yes I unddrstand now.Thanks