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Assoli18 [71]
3 years ago
13

Evaluate the summation of 3 times negative 2 to the n minus 1 power, from n equals 1 to 5..

Mathematics
2 answers:
Gnom [1K]3 years ago
6 0
For n = [1,2,3,4,5]  you can evaluate the series as follows:

3( -2)^{1-1} +3( -2)^{2-1} +3( -2)^{3-1} +3( -2)^{4-1}+3( -2)^{5-1}
= 3 + (-6) + (12) + (-24) + (48)
= 63 - 30
= 33
erica [24]3 years ago
6 0
He is correct, the answer is 33

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<h3>What is the mean length (rounded to 2 DP) of these 8 people's index finger?</h3>

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