Find the first three terms of the sequence defined below, where n represents the position of a term in the sequence. Start with n = 1. an = –7n + 1 , ,

1 answer

To find the first three terms of the sequence defined by \( a_n = -7n + 1 \), we will calculate \( a_1 \), \( a_2 \), and \( a_3 \).

  1. For \( n = 1 \): \[ a_1 = -7(1) + 1 = -7 + 1 = -6 \]

  2. For \( n = 2 \): \[ a_2 = -7(2) + 1 = -14 + 1 = -13 \]

  3. For \( n = 3 \): \[ a_3 = -7(3) + 1 = -21 + 1 = -20 \]

Thus, the first three terms of the sequence are:

  • \( a_1 = -6 \)
  • \( a_2 = -13 \)
  • \( a_3 = -20 \)

In summary, the first three terms are \(-6\), \(-13\), and \(-20\).