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8 July, 20:29

Find the 12th partial sum of the summation of negative 2i minus 10, from i equals 1 to infinity.

25

40

-276

72

+3
Answers (2)
  1. 8 July, 20:40
    0
    The given equation is:

    x = - 2i - 10

    Calculating for values of i = 1 to 12

    x (1) = - 2 - 10 = - 12

    x (2) = - 4 - 10 = - 14

    x (3) = - 6 - 10 = - 16

    x (4) = - 8 - 10 = - 18

    x (5) = - 10 - 10 = - 20

    x (6) = - 12 - 10 = - 22

    x (7) = - 14 - 10 = - 24

    x (8) = - 16 - 10 = - 26

    x (9) = - 18 - 10 = - 28

    x (10) = - 20 - 10 = - 30

    x (11) = - 22 - 10 = - 32

    x (12) = - 24 - 10 = - 34

    Getting the sum of all:

    12th partial sum = - 276
  2. 8 July, 20:42
    0
    The answer to your question is C.-276
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