Matematika

Pertanyaan

Barisan aritmatika u1=27 u2=43 u9=?

2 Jawaban

  • B
    = U2 - U1
    = 43 - 27
    = 16

    U9
    = U1 + 8B
    = 27 + 8(16)
    = 27 + 128
    = 155
  • • Dik :
    Barisan Aritmatika = 27, 43, . . .
    a = 27
    b = 43 - 27 = 16

    • Dit :
    U9 = . . . ?

    • Jawab :
    Un = a + (n - 1) b
    U9 = 27 + (9 - 1) 16
    = 27 + 8 • 16
    = 27 + 128
    U9 = 155

    Maaf kalau salah:)
    Semoga membantu:D

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