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Mathematics, 25.05.2020 03:57 kamayablancowa

Can the formula S=A1/1-r be used to find the sum of all the terms of each sequence? Explain why or why not.
Sequence One: 5, 1, 1/5, 1/25,...
Sequence Two: 1/32, 1/16, 1/8, 1/4,...
Sequence Three:7, 14, 22, 28,...
Sequence Four:1, -3/2, 9/4, -27/8,...

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