Question

If for a GP [s3 = 31] and [s6 = 3906] then find a and r

Answer 1

wat does s3 symbolize? sum of first three terms???

Answer 2

Yes it is the sum of first 3 terms

Answer 3

a = first term
r= common ratio

Answer 4

@random231

Answer 5

wait a sec!!

Answer 6

ok!

Answer 7

so do you know the formula of the sum of n terms of a GP?

Answer 8

yes

Answer 9

So how do u get to know that the common ratio is greater than 1 or less than 1

Answer 10

any of them will give you the answer!!

Answer 11

or