The total number of fungal spores can be found using an infinite geometric series where a1 = 8 and the common ratio is 4. Find the sum of this infinite series that will be the upper limit of the fungal spores.

Question

anonymous · Answer

@ganeshie8 @shamil98

anonymous · Answer

@ehuman

ganeshie8 · Answer

sum formula for infinite geometric series $ \large   \frac{a}{1-r}$

ganeshie8 · Answer

plugin and simplify

anonymous · Answer

8/3

anonymous · Answer

=2.6666

anonymous · Answer

hello @ganeshie8

ganeshie8 · Answer

wait a sec, to take infinite geometric series sum, common ratio must be less than 1

anonymous · Answer

oh 1-4 is -3 i made a mistake right?

ganeshie8 · Answer

check ur question again,
is the common ratio really 4 ?

"... common ratio is 4"

anonymous · Answer

It would be -2.6666 or 8/-3

ganeshie8 · Answer

yeah go wid that:) eventhough its incorrect, ur teacher wants that oly im sure.

anonymous · Answer

or is it this is a divergent series

anonymous · Answer

@ganeshie8 lol thats not any of the options

ganeshie8 · Answer

Yes, this is divergent series. cuz |r| = 4 which is greater than 1

ganeshie8 · Answer

publish options also next time ugh :|

anonymous · Answer

Thank You :)

ganeshie8 · Answer

np :)