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(Sigma)20 4(8/9)^n-1=? 1
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2 votes
(Sigma)20 4(8/9)^n-1=?
1

User RaeLehman
by
8.6k points

1 Answer

4 votes

Convert to a simplified fraction.

20 amgiS ⋅ 9n / 2^2+3n − 9^n

Move 20 to the left of Sigma.

20 Sigma

User Harald K
by
8.6k points
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