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Unattributed TMUA Mock Set B Paper 1 · Q12

Paper 1Sequences & series

For an arithmetic sequence ana_n, a1+a2+⋯+a100+a101=0a_1+a_2+\cdots+a_{100}+a_{101}=0. Which of the following is correct?

Aa1+a101>0a_1+a_{101}>0
Ba2+a100<0a_2+a_{100}<0
Ca3+a99=0a_3+a_{99}=0
Da51=51a_{51}=51

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