Matematika

Pertanyaan

Suku ke 12 dari barisan 46,55,64,73

2 Jawaban

  • Barisan Aritmatika

    46, 55, 64, 73, ...
    U1 = a = 46
    b = U2 - U1 = 55 - 46 = 9

    Un = a + (n - 1)b
    U12 = 46 + (12 - 1)(9)
    U12 = 46 + 99
    U12 = 145 ✔
  • 46,55,64,73,82,91,100,109,118,127,136,145
    suku ke12 = 145

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