BThem fa ifinite gometric series is 8. If its second term is 2,nsfirdc

1.	BThem fa ifinite gometric series is 8. If its second term is 2,nsfirdcommon ralio.
Answer» thanks sum of infinite series = a/(1-r) so, a/(1-r) = 8 and second term is =ar = 2 a = 2/rso, 2/r(1-r) =8 => 1/r(1-r) = 4=> r-r² = 1/4 so, 4r²-4r+1 = 0r = 1/2.

BThem fa ifinite gometric series is 8. If its second term is 2,nsfirdcommon ralio.

Answer»

thanks

sum of infinite series = a/(1-r) so, a/(1-r) = 8 and second term is =ar = 2 a = 2/rso, 2/r(1-r) =8 => 1/r(1-r) = 4=> r-r² = 1/4 so, 4r²-4r+1 = 0r = 1/2.

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BThem fa ifinite gometric series is 8. If its second term is 2,nsfirdcommon ralio.

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