Matematika

Pertanyaan

Tolong ya yg pintar MTK tolong Bantu
Tolong ya yg pintar MTK tolong Bantu

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2 Jawaban

  • Sn= ½n (2a+ [n-1] b)
    =½.12 (2.150000+ [12-1] 60000
    = 6(300000+660000)
    =5760000

    jawabannya A

  • a=150000
    b=60000
    u12=a+(n-1)b
    150000+(11)60000
    150000+660000
    810000
    Sn=n/2( a+u12)
    Sn=12/2(150000+810000)
    6(960000)
    =5760000(A)

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