Matematika

Pertanyaan

barisan aritmetika
1/2 , 2/5 , 3/10
U10 =
U45 =

1 Jawaban

  • 1/2 = 5/10
    2/5= 4/10
    3/10 = 3/10

    Beda = -1/10

    U10 :
    = a + 9b
    = 5/10 + 9 x -1/10
    = 5/10 + -9/10
    = -4/10
    = -2/5

    U45 :
    = a + 44b
    = 5/10 + 44 x -1/10
    = 5/10 + -44/10
    = -39/10

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