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zvonat
[6]
3 years ago
7
Write the sum using summation notation, assuming the suggested pattern continues.1 - 3 + 9 - 27 + ...
Mathematics
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1
answer:
Fantom
[35]
3 years ago
7
0
The pattern that is summed may be written as
S = 1 - 3 + 9 - 27 + . . .
= (-3)^0 + (-3)^1 + (-3)^2 + (3)^3 + . . .
The n-th term in the sum is (-3)^n, for n = 0,1,2,3, . . .
The sum may be written with summation notation as
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