Write a recursive formula for the sequence 7 13 19.

nth term = 7 + ( n- 1) × d

explanation:

the formula for this particular arithmetic progression is nth term = a + (n-1) × d

so , the formula for this sequence is

nth term = 7 + (n-1) × 6

find any term with this formula to check if it is correct.

3rd term = 7 + ( 3 -1 ) × 6

= 7 + 12

= 19

so it is correct .

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