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5. Which expression defines the arithmetic series 1 + 3 + 5 + ... for seven terms?

5. Which expression defines the arithmetic series 1 + 3 + 5 + ... for seven terms-example-1
User SystemicPlural
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1 Answer

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Answer:

the forth option, because 2(1)-1=1; 2(2)-1=3; 2(3)-1=5; 2(4)-1=7; ......; 2(7)-1=13.

User Cboden
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