
Bab Eksponen dan Logaritma - Pengertian Bilangan Berpangkat
Presentation
•
Mathematics
•
10th Grade
•
Practice Problem
•
Medium
Supaat Supaat
Used 175+ times
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6 Slides • 5 Questions
1
Pengertian Bilangan Berpangkat
Supaat, M.Pd.
2
Definisi Bilangan Berpangkat Bilangan Asli
Misalkan a adalah bilangan real. Sedangkan, n adalah bilangan asli.
Selanjutnya, didefinisikan an (dibaca " a pangkat n ") sebagai berikut:
an=a×a×a×⋯×a (sebanyak n faktor)
3
Contoh 1
24=2×2×2×2
( 2 dikalikan berulang sebanyak 4 faktor)
4
Contoh 2
126=12×12×12×12×12×12
( 12 dikalikan berulang sebanyak 6 faktor)
5
Multiple Choice
Jika dinyatakan dalam bentuk bilangan berpangkat paling sederhana, maka (−2)×(−2)×(−2) sama dengan ...
23
−23
2−3
3−2
6
Multiple Choice
Jika dinyatakan dalam bentuk bilangan berpangkat paling sederhana, maka (−31)×(−31)×(−31)×(−31) sama dengan ...
341
−341
(31)−4
−3−4
7
Multiple Choice
Jika dinyatakan dalam bentuk bilangan berpangkat paling sederhana, maka (−31)×(−31)×(−31)×(−31) sama dengan ...
341
−341
(31)−4
−3−4
8
Contoh 3
Nyatakan 16 sebagai bilangan real prima berpangkat bilangan asli!
Jawab:
16=2×2×2×2=24
9
Contoh 4
Nyatakan 200 sebagai bilangan real prima berpangkat bilangan asli!
Jawab
200=2×2×2×5×5=23×52
10
Multiple Choice
Jika dinyatakan dalam perkalian bilangan prima berpangkat, maka 1.000 sama dengan ...
103
23×53
4×53
23×125
11
Multiple Choice
Jika dinyatakan dalam perkalian bilangan prima berpangkat, maka 3.125 sama dengan ...
32×53
35
55
22×33×52
Pengertian Bilangan Berpangkat
Supaat, M.Pd.
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