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rcetrangolo
08.01.2020 •
Mathematics
The first terms of an infinite geometric sequence, un are 2, 6, 18, the first terms of a second infinite geometric sequence, vn are 2, -6, 18, - the terms of a third sequence wn are defined as wn = un + vn
1. the finite series, summation: upper limit= 225, lower limit k=1, formula wk
can also be written in the form summation: upper limit= m, lower limit k=0, formula 4r^k.
find the value of r.
2. find the value of m
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Ответ:
r = 9 and m = 112
Step-by-step explanation:
Write W in terms of U and V.
Define U and V using geometric series formula.
Use sum of geometric series formula.
Simplify.
Therefore, r = 9 and m = 112.
Ответ:
For more details see the attached graph.