Kunci Jawaban Matematika Kelas 9 Halaman 30 31 32: Cara Hitung Pembagian Pada Perpangkatan

c. (0,3)^7/(0,3)^3
= (0,3)^(7-3)= (0,3)^4
= (0,3)^4
= 0,0081

d. (2/5)^9/(2/5)^5
= (2/5)^(9-5)= (2/5)^4
= (2/5)^4
= 16/625

e. (3^7 x 3^2)/3^3
= 3^(7+2-2)= 3^6
= 3^6
= 729

f. 5^5/(5^2 x 5^3)
= 5^(5-2+3) = 5^1
= 5^1
= 5

g. (2^7 x 6^7)/4^7
= 2^7 x 2^7 x 3^7 / 4^7
= (2.2)^7 x 3^7/4^7
= 4^(7-7) x 3^7
= 4^0 x 3^7
= 1 x 3^7
= 3^7

h. (6^7 x 3^3)/2^7
(2.3)^7 x 3^3/2^7
= 2^7 x 3^7 x 3^3/2^7
= 2^(7-7) x 3^(7+3)
= 2^0 x 3^10
= 1 x 3^10
= 3^10

i. (10^6 x 4^2)/(253 x 83)
= (2.5)^6 x (2^2)^2 / (5^2)^3 x (2^3)^3
= 2^6 x 5^6 x 2^4 / 5^6 x 2^9
= 2^(6+4-9) x 5^6-6
= 2^1 x 5^0
= 2 x 1
= 2

j. (21^5 : 9^2)/(7/2)^2
= 21^5/9^2 x (2/7)^2
= (3.7)^5/(3^2)^2 x 2^2/7^2
= 3^5 x 7^5 x 2^2/ 3^4 x 7^2
= 3^(5-4) x 7(5-2) x 2^2
= 3^1 x 7^3 x 2^2
= 3 x 2^2 x 7^3

Baca Juga: Kunci Jawaban Seni Budaya Kelas 9 Halaman 12: Mengeksplorasi Keindahan Dunia Seni Lukis

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