Kunci Jawaban Matematika Kelas 9 Latihan 1.3 Halaman 30, 31, 32 Materi Perpangkatan

b. (-4)^6/(-4)^2
= (-4)^6-2
= (-4)^4
= 4^4
= 256

c. (0,3)^7/0,3^3
= 0,3^7-3
= 0,3^4
= 0,3 x 0,3 x 0,3 x 03
= 0,0081

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

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

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

g. 2^7 x 6^7 / 4^7
= 2^7 x (2 x 3)^7 / 2^(2x7)
= 2^7 x 2^7 x 3^7 / 2^14
= 2^(7 + 7) x 3^7 / 2^14
= 2^(14-14) x 3^7
= 2^0 x 3^7
= 1 x 3^7
= 3^7
= 2.187

h. 6^7 x 3^3 / 2^7
= 2^7 x 3^7 x 3^3 / 2^7
= 3^(7+3)
= 3^10

i. 10^6 x 4^2 / (25^3 x 8^3)
= 2^6 x 5^6 x 2^(2x2) / (5^(2x3) x 2^(3x3))
= 2^10 x 5^6 / (5^6 x 2^9)
= 2^(10-9) x 5^(6-6)
= 2^1 x 5^0
= 2 x 1
= 2

j. 21^5/9^2 : (7/2)^2
= 7^5 x 3^5 / 3^(2x2) : (7^2 / 2^2)
= 7^5 x 3^(5-4) : 7^2 / 2^2
= 7^(5-2) x 3^1 x 2^2
= 7^3 x 3 x 4
= 12 x 7^3

Baca Juga: Kunci Jawaban Bahasa Indonesia Kelas 8 Halaman 12 Tugas Individu Kurikulum 2013