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OpenStudy (anonymous):
If for a GP [s3 = 31] and [s6 = 3906] then find a and r
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random231 (random231):
wat does s3 symbolize? sum of first three terms???
OpenStudy (anonymous):
Yes it is the sum of first 3 terms
OpenStudy (anonymous):
a = first term r= common ratio
OpenStudy (anonymous):
@random231
random231 (random231):
wait a sec!!
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OpenStudy (anonymous):
ok!
random231 (random231):
so do you know the formula of the sum of n terms of a GP?
OpenStudy (anonymous):
yes
OpenStudy (anonymous):
So how do u get to know that the common ratio is greater than 1 or less than 1
random231 (random231):
any of them will give you the answer!!
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OpenStudy (anonymous):
|dw:1395741544023:dw| or
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