NeverEndingCycle
28.06.2019 •
Mathematics
Write an explicit formula for the sequence given by the recursive definition a(1)=1 and a(n+1)=a(n)+7
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Ответ:
an = -6+n
or
an = 1 + 7(n-1)
Step-by-step explanation:
a(1)=1 and a(n+1)=a(n)+7
The explicit formula is
an = a1+ d (n-1)
we know a1 =1
Looking at a(n+1)=a(n)+7
We are adding 7 each time so the common difference is +7
an = 1 + 7(n-1)
We can simplify this
an = 1 + 7n -7
an = -6+n
You can use either formula
Ответ:
5=8
6=75%?
7=21?
8=21
9=400
10=100
11=40
These are all the one I got the ones with ? At the end I’m not sure about