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jaylin50
03.05.2020 •
Mathematics
If a1 = 4 and an = -2an-1 then find the value of a6.
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Ответ:
2048
Step-by-step explanation:
Time to use recursive formula :)
Since a of 1 = 4 and -the recursive formula is
-2(a of n-1) We know that the r = -2
Convert that to explicit is
f(n) = -2 * 4^n-1
Let's use that to get the value for a of 6.
f(6) = -2 * 4^6-1
= -2 * 4^5
= -2048
Ответ:
1. 54
2.?
Step-by-step explanation:
:) Have a nice day!