Ask Question
26 December, 18:43

1/2,-4,32,-256 find an explicit formula for the sequence

+4
Answers (1)
  1. 26 December, 21:31
    0
    This is a geometric sequence where each term after the first is found by multiplying the previous one by a fixed, non-zero number called the common ratio.

    an = a1 * r^n-1

    where

    an = nth term

    a1 = 1st term

    r = common ratio

    In this problem, a1 = 1/2.

    Find the common ratio by dividing - 4 by 1/2 to get r = - 8.

    The explicit formula is an = (1/2) * (-4) ^n-1
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “1/2,-4,32,-256 find an explicit formula for the sequence ...” in 📙 Mathematics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers