Pizzapegasus1
03.07.2019 •
Mathematics
Find the 21st term of the geometric sequence that begins 2,6,18,
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Ответ:
6973568802
Step-by-step explanation:
I memorized the equation: A(n) = A(1)*d^(n-1).
You can plug into the equation A(21) = 2*3^20, which can be solved to 6973568802. (I solved this step through a calculator by finding 3^20, then multiplying that by 2 to get 6973568802.
Hope this helps!
Ответ: