Question 1137742: The product of the fifth, seventh and ninth term in GP is 27. Find the terms.
Answer by dkppathak(439)   (Show Source):
You can put this solution on YOUR website! The product of the fifth, seventh and ninth term in GP is 27. Find the terms.
let terms are ar^4,ar^6,ar^8
product of these terms are a^3r^18=(ar^6)^3 =27
than ar^6=3
we know in gp if three terms a ,b,c than b^2=ac
than 5th term will be 1 seventh term will be 3 and ninth term will be 9
if you check product of all three terms =27
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