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Barisan geometri (idschool.net)
Lalu, gimana sih cara menentukan rasio? Liatlah rumus di bawah ini.
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geometri (idschool.net)
Berikut contoh soal untuk mencari rasio dalam barisan geometri.
Misalnya, ada barisan 512, 256, 128, ..., 2
Maka, cara menghitung rasionya: r = 256/512 = 1/2. Mudah kan? kalian hanya perlu menghitung bilangan dalam baris yang diketahui dibagi dengan bilangan sebelumnya.
Begitulah pengertian dan dasar-dasar tentang baris aritmetika dan geometri. Mudah dipahami kan? Untuk selanjutnya, kalian bisa pelajari deret aritmetika dan geometri. Selamat belajar.
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