Belajar Matematika : Bilangan Berpangkat

Eed – Setelah di postingan sebelumnya kita membahas tentang Tips Belajar Matematika, sekarang kita akan belajar tentang Bilangan Berpangkat.

Belajar Bilangan Berpangkat

Perpangkatan adalah perkalian berulang sebuah bilangan dengan bilangan itu sendiri. Contoh: 5x5x5=53. Tujuan dari perpangkatan ini adalah untuk menyederhanakan suatu bilangan agar menjadi lebih simpel.

Jenis – Jenis Bilangan Berpangkat

Bilangan berpangkat ada banyak jenisnya seperti, bilangan berpangkat positif, bilangan berpangkat negatif, bilangan berpangkat nol, bilangan pecahan berpangkat bilangan bulat, dan bilangan bulat berpangkat pecahan.

1. Bilangan Berpangkat Positif

Bilangan berpangkat positif adalah bilangan yang mempunyai pangkat positif.

Keterangan :

a = bilangan pokok

n = pangkat

2. Bilangan Berpangkat Negatif

Bilangan berpangkat negatif adalah bilangan yang mempunyai pangkat negatif.

3. Bilangan Berpangkat Nol

Bilangan berpangkat nol adalah bilangan yang mempunyai pangkat nol. Semua bilangan yang dipangkatkan dengan 0(nol) hasilnya 1(satu).

4. Bilangan Pecahan Berpangkat Bilangan Bulat

Bilangan pecahan berpangkat bilangan bulat adalah bilangan pecahan yang mempunyai pangkat bilangan bulat. Cara menghitungnya adalah dengan memangkatkan pembilang dan penyebut.

Keterangan :

a = Pembilang

b = Penyebut

5. Bilangan Bulat Berpangakat Pecahan

Bilangan bulat berpangkat pecahan adalah bilangan bulat yang mempunyai pangkat berupa pecahan.

Baca Juga: Tips Belajar Matematika Secara Efektif

Sifat – Sifat Bilangan Berpangkat

Bilangan berpangkat mempunyai beberapa sifat – sifat yang harus kita ketahui, diantaranya :

1. Perkalian Bilangan Berpangkat

Jika ada bilangan berpangkat yang bilangan pokoknya sama, jika dikalikan maka pangkatnya ditambah.

2. Pembagian Bilangan Berpangkat

Pembagian merupakan kebalikan dari perkalian, jika ada bilangan berpangkat yang bilangan pokoknya sama, jika dibagi maka pangkatnya dikurangi.

3. Perpangkatan Bilangan Berpangkat

Kalau ada bilangan berpangkat yang dipangkatkan, maka pangkatnya harus dikali.

4. Perpangkatan Suatu Perkalian

Apabila ada dua bilangan yang dikalikan dan dipangkatkan maka bilangan tersebut harus dipangkatkan terlebih dahulu sebelum dikalikan.

5. Perpangkatan Suatu Pembagian

Sebenarnya perpangkatan suatu pembagian sama halnya dengan bilangan pecahan berpangkat. Bilangan pokoknya harus dipangkatkan terlebih dahulu sebelum dibagi.

Itu adalah pembahasan mengenai bilangan berpangkat dan sifat – sifatnya. Dengan belajar bilangan berpangkat, kita bisa meringkas bilangan – bilangan menjadi lebih sederhana dan mudah untuk dipahami.

Semoga Bermanfaat

44 tanggapan pada “Belajar Matematika : Bilangan Berpangkat”

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