Matematika

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Tolong bantu jawab ya
Tolong bantu jawab ya

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1 Jawaban

  • a = 10
    r = 5/10
    r = ½

    S7 = 10 x ( 1 - ½^7)/(1-½)
    = 10 x 2 x ( 128-1)/128
    = 20 x 127/128
    = 2.540/128
    = 19 27/32

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