Respuesta :

Answer:

21, 20, 19, 18, 17

-2, -3, -4, -5, -6

Step-by-step explanation:

term-to-term rule: -1 (subtract 1)

  • starting with 21 the sequence of five numbers is: 21, 20, 19, 18, 17
  • starting with -2 the sequence of five numbers is: -2, -3, -4, -5, -6

In the first sequence all the terms are positive and in the second one they are negative

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