Get a calculator, and upload those 3 numbers, then upload 19 greater by using lowering by using 14 each and every time. case in point the subsequent style interior the sequence is 111, then ninety seven etc. shop doing this till you have 22 numbers, then get a calculator and upload them up.
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Verified answer
The sum of the arithmetic sequence
153, 139, 125, …,
if there are 22 terms is 132.0.
a1 = 153
a2 = 139
r = -14
S22 = 132.0
Get a calculator, and upload those 3 numbers, then upload 19 greater by using lowering by using 14 each and every time. case in point the subsequent style interior the sequence is 111, then ninety seven etc. shop doing this till you have 22 numbers, then get a calculator and upload them up.