Matematika

Pertanyaan

tentukan jumlah deret 12+18+24+....+96

0 Comment.

1 Jawaban

  • b = 18 - 12 = 6
    Un = a + (n-1)b

    96 = 12 + 6n - 6
    => 6n + 6 = 96

    U2 = a+ (2-1)b
    => 18 = 12 + 6 = 18

    n = 15

    S15= 15/2 (2(12) + 16(6))
    => 15/2 (24 + 96)
    => 15/2 (120)
    => 15 (60)
    => 900

Pertanyaan Lainnya

( 5a-4b ) ( -3a+2b )

apa yang dimaksud bpupki?

657 + (-777) x 0 = ???

Sebutkan nama negara anggota AFTA

Change the sentence into present tense! 1. Mr. Rudi rode his motorcycle (+) (-) ...