6 July, 09:40

# Determine the nth term for each of the following sequences:16,15,14,13,12, ...

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Answers (1)
1. 6 July, 09:59
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F (n) = 1st term - common difference (n - 1)

The operation is subtraction because the sequence is decreasing.

n = number of the term you are looking for

1st term = 1st number in the sequence, in this case, 16

common difference = difference between one number to the next

f (n) = 16 - 1 (n-1)

Assuming we are looking for the 5th term.

f (5) = 16 - 1 (5-1)

= 16 - 1 (4)

= 16 - 4

= 12 * as you can see, 12 is the 5th term of the sequence.

If you are looking for the equivalent of the nth term, simply substitute n by the number you are looking for and solve the equation.
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