Matematika

Pertanyaan

Barisan bilangan yang memenuhi rumus Un = (2n-1)/2 adalah

1 Jawaban

  • Un = (2n - 1)/2

    U1 = (2 × 1 - 1)/2
    = (2 - 1)/2
    = 1/2

    U2 = (2 × 2 - 1)/2
    = (4 - 1)/2
    = 3/2 = 1 1/2

    U3 = (2 × 3 - 1)/2
    = (6 - 1)/2
    = 5/2 = 2 1/2

    U4 = (2 × 4 - 1)/2
    = (8 - 1)/2
    = 7/2 = 3 1/2

    U5 = (2 × 5 - 1)/2
    = (10 - 1)/2
    = 9/2 = 4 1/2

    deret = 1/2, 1 1/2, 2 1/2, 3 1/2, 4 1/2, ...

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