scharmel scharmel

03-07-2018
Mathematics

contestada

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

−93
−33
33
93

Evaluate the summation of 3 times negative 2 to the n minus 1 power from n equals 1 to 5 93 33 33 93 class=

Respuesta :

dwh2o13 dwh2o13

03-07-2018

For n = [1,2,3,4,5] you can evaluate the series as follows:

[tex]3( -2)^{1-1} +3( -2)^{2-1} +3( -2)^{3-1} +3( -2)^{4-1}+3( -2)^{5-1} [/tex]
= 3 + (-6) + (12) + (-24) + (48)
= 63 - 30
= 33

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melodydavis2k12 melodydavis2k12

03-07-2018

he is correct, the answer is 33

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