Write the first five terms of the geometric sequence a_1=5,r=−1/10

Izabelle Lowery

Izabelle Lowery

Answered question

2022-10-30

Write the first five terms of the geometric sequence a 1 = 5 , r = - 1 10

Answer & Explanation

Kyle Delacruz

Kyle Delacruz

Beginner2022-10-31Added 21 answers

The General term is T n = a n n - 1
Option 1.: Let n=1,2,3,4,5 and calculate each term.
Option 2: Multiply one term by - 1 10 to get the next.
This seems the easier option.
5 × - 1 10 = - 0.5
- 0.5 × - 1 10 = 0.05 and so on,
This gives: 5 −0.5, 0.05, −0.005, 0.0005
Notice the sign changes each time.

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