AaronEarlMerringer
26.09.2019 •
Mathematics
Simplify
-8a-7a
can someone explain this briefly ?
Solved
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Ответ:
Ответ:
a(i)=a1*r^(i-1)
we know that a(5)=a1*(1/2)^(5-1)=a1/16 = 1/4
solve for a1=(1/4)*16=4
=>
sequence:
4,2,1,1/2,1/4,1/8,1/16,...