Materi matematika 1
Transcript of Materi matematika 1
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Let’s Begin
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SKALA
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SKALA
perbandingan antara ukuran gambar/ukuran
peta dengan ukuran sebenarnya.
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FAKTOR SKALA & GAMBAR BERSKALA
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PERBANDINGAN
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Ada dua macam perbandingan :
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JUAL BELI
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Menghitung Untung (Laba)
Menghitung Rugi
Harga Jual
Diskon / Potongan Harga
Bruto, Neto & Tara
Rumus-Rumus dalam jual beli :
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Bruto = Berat kotor
Neto = Berat bersih
Tara = Berat bungkus/kemasan
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PANGKAT
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Ingat aturan pangkat jika a dan b bilangan real sertam, n, p, q bilangan bulat positif maka berlaku :
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Jadikan pangkat yang bisa dicoretdengan bawah
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Pangkat negatif
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AKAR
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Cari perkalian dengan bilangankuadrat
Berapa kali berapayang salah satunyabisa dikuadratkan
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Merasionalkan penyebut
Contoh :
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Yang berubah hanyatandanya (-) jadi (+)
dan (+) jadi (-).
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Bentuk Akar di dalam Akar :
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LOGARITMA
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