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# Arithmetic Sequence

Arithmetic Sequence

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### Arithmetic Sequence

1. 1. 1.) 1, 2, 3, 4, 5,1.) 1, 2, 3, 4, 5, 6, 7, 8 2.) 2, 5, 8, 11, _2.) 2, 5, 8, 11, 14, 17, 20 5.) 1, 4, 16, 64, 3.) 5, 10, 15, 20, 25, 30, 35 4.) 1, 2, 4, 8,4.) 1, 2, 4, 8, 16, 32, 64 5.) 1, 4, 16, 64, 256, 1024, 4096 3.) 5, 10, 15, 20,
2. 2. By pattern searching, identify the 10th term of the following. 1.) 1, 2, 3, 4, 5, 6, 7, 8 2.) 2, 5, 8, 11, 14, 17, 20 10th term is 10 10th term is 29 Just add 1 to the preceding term 1 is called the common difference (d) and is obtained by subtracting the 2nd term by the 1st term, 3rd term by the 2nd term and so on. Just add 3 to the preceding term Note that the sequence 1, 2, 3, 4, 5, 6, 7, 8 with the common difference 1 can be expressed as 1, 1+1, 2+1, 3 + 1, 4 + 1, 5 + 1, 6 + 1, 7 + 1, 8 + 1
3. 3. 4.) 6, 12, 18, 24, 30, 36 5.) 28, 25, 23, 20, 17, 14 4.) 6, 12, 18, 5.) 28, 25, 23, d = 12 – 6 d = 18 – 12 = 6 = 6 d = 25 – 28 d = 23 – 25 = -3 = -3