Re: Sn represent the sum of n terms of a certain sequence, where each term
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23 Aug 2023, 07:13
To understand the solution for this one, read the question more carefully:
Sn, represent the "SUM" of n terms of a certain sequence, where each term after the first term of the sequence is obtained by adding a constant c, where c > 0, in the preceding term.
Case 1: Since c is positive, consider c=1, and the first term in the sequence = -10.
So, the sequence would be -10,-9,-8,-7,..
Since Sn is the sum of the sequence, S1 = -10, S2 = -19. Here S1>S2.
Case 1: Since c is positive, consider c=1, and the first term in the sequence = 1.
So, the sequence would be 1,2,3, 4,..
Since Sn is the sum of the sequence, S1 = 1 , S2 = 3. Here S2>S1.
Hence, D.