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Mathematics, 02.04.2021 22:10 thasen31

•Find the first term in the sequence for which a20 =42 and d=2 •if r =2 and a6 = 96, find the first term of geometric sequence.
•find the sum of the first 10 terms of the series 4+20+100+500+__
•find the sum of the infinite geometric series 1/2+1/4+1/8+_


•Find the first term in the sequence for which a20 =42 and d=2 •if r =2 and a6 = 96, find the fir

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