In GP. 2, 6, 18, 54, .................. 13122; the product of 3rd term from the beginning
and 3rd term from the last is 26244. Show it.
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Answer:
Step-by-step explanation:
2.6.18.54.162.486.1458.4374.13122
13122*2=26244
Answered by
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Step-by-step explanation:
Given : In GP. 2, 6, 18, 54, .................. 13122; the product of 3rd term from the beginning and 3rd term from the last is 26244.
To find : Show it ?
Solution :
In GP. 2, 6, 18, 54, .................. 13122.
First term a=2
Common ratio
Last term is l=13122
The last term formula is
On comparing the base,
So, total number of terms are 9.
The 3rd term from the beginning is 18.
The 3rd term from the last is 7th term which is
The product of 3rd term from the beginning and 3rd term from the last is
Hence showed.
#Learn more
Sum to infinite terms of gp 1/2+1/6+1/18+1/54.....
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