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5-106.

Read the Math Notes box in this lesson for information about an alternative notation for sequences and write the first 5 terms of these sequences.

  1. a1 = 2(1) − 5 
    a2 = 2(2) − 5


  1. Note that a1 is given.

    a2 : a1+1 = −2 · a1
    a2 = −2(3)

    a3 : a2+1 = −2 · a2
    a3 = −2(−6)