SOLUTION: What is the 21st term of {-5, -11, -17,...}
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Question 1185122: What is the 21st term of {-5, -11, -17,...}
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!
, ,
find differences
.......... .............
....................
The formula for th term of an arithmetic progression is. In this example we have and , so
then the st term is:
->
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