samikshyabchhetri samikshyabchhetri

20-11-2021
Mathematics

contestada

. The sum of infinity of G.S is 15, 1st term is 3 then the common ratio is.

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VirαtKσhli VirαtKσhli

20-11-2021

Step-by-step explanation:

We know ,

=> Sum = a / 1 - r

=> 15 = 3/1-r

=> 15 - 15r = 3

=> 15r = 18

=> r = 18/15

=> r = 6/5

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