How do you find the explicit formula for the following sequence 20,15,10,5,0?
1 Answer
To find the explicit formula for an arithmetic sequence you must use the formula
Explanation:
In the formula given above:




This formula is now completely simplified, and as soon as you plug in a number for
Example
Find the 26th term in the sequence.
Find which number of term has the value of
Practice exercises:
 Consider the following sequence:
#4, 11, 18, ...#
a) Find the explicit formula
b) Find the 37th term
c) Find the value of
Good luck!