Given the arithmetic sequence 2 + 5 + 8 + 11 + 14 + 17 + 20 ... answer the questions. We define T1 = S1 = 2.
1. Determine the values of T2, S2 and S1. 2. Determine the values of T3, S3 and S2
3. Determine the values of T4, S4 and S3.
4. What can you conclude about the sequence?
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Step-by-step explanation:
1. T2 = 5, S2 = T1 + T2 = 2 + 5 = 7, S1 = T1 = 2
2. T3 = 8, S3 = 15, S2 = 7
3. T4 = 11, S4 = 26, S3 = 15
4. Since S_n - S_ n-1 = T_n, this sequence is an arithmetic progression (AP)
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