2.The nth term of an arithmetic sequence is given by. an = a + (n – 1)d. The number d is called the common difference because any two consecutive terms of an. arithmetic sequence differ by d, and it is found by subtracting any pair of terms an and. an+1.
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2.The nth term of an arithmetic sequence is given by. an = a + (n – 1)d. The number d is called the common difference because any two consecutive terms of an. arithmetic sequence differ by d, and it is found by subtracting any pair of terms an and. an+1.
3.1. 5d, 6e, 7f
1. 4x, 5x, 6x
2. a+7b, a+9b, a+11b
4.r7, r9, r11
5. U, T, S
6.
7. 15n, 20n, 25n
8. V5, X3, Z1
9. G20, I18, K16
Step-by-step explanation:
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