Matematika

Pertanyaan

rumus suku ke n dari barisan 13,9,5,1...adalah

2 Jawaban

  • Chapter Rows and Rows
    Mathematics
    Grade 9 junior high


    "Looking for the n th term formula of the Arithmetic sequence"


    Settlement

    a = 13
    b = U2 - U1
        = 9 - 13
        = -4

    Un = a + (n - 1) b
          = 13 + (n - 1) -4
          = 13 + - 4n + 4
          = -4n + 17


    I hope this helps!!!



  • Tn = T1+(n-1)d
    Tn = 13+(n-1)-4
    = 13+-4n+4
    = 17n-4

    SEMOGA MEMBANTU

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