Toán 3 mũ 15 : 3 mũ 5 9 mũ 4 : 3 mũ 6 27 mũ 5 : 9 mũ 3 7 mũ 3 : 7 mũ 3 02/07/2021 By Ayla 3 mũ 15 : 3 mũ 5 9 mũ 4 : 3 mũ 6 27 mũ 5 : 9 mũ 3 7 mũ 3 : 7 mũ 3
Bạn tham khảo : $3^{15} : 3^5 =3^{15 – 5} = 3^{10}$ $9^4 :3^6 = (3^2)^4 : 3^6 = 3^8 : 3^6 = 3^2 =9$ $27^5 : 9^3 = (3^3)^5 : (3^2)^3 = 3^{15} : 3^6 = 3^9$ $7^3 : 7^3 = 1$ Trả lời
3^15 : 3^5 =3^15-5 =3^10 9^4:3^6 =(3^2)^4:3^6 =3^8:3^6 =3^8-6 =3^2 27^5:9^3 =3^15:3^6 =3^15-6 3^9 7^3:7^3 =7^3-3 =7^0 =1 Trả lời
Bạn tham khảo :
$3^{15} : 3^5 =3^{15 – 5} = 3^{10}$
$9^4 :3^6 = (3^2)^4 : 3^6 = 3^8 : 3^6 = 3^2 =9$
$27^5 : 9^3 = (3^3)^5 : (3^2)^3 = 3^{15} : 3^6 = 3^9$
$7^3 : 7^3 = 1$
3^15 : 3^5
=3^15-5
=3^10
9^4:3^6
=(3^2)^4:3^6
=3^8:3^6
=3^8-6
=3^2
27^5:9^3
=3^15:3^6
=3^15-6
3^9
7^3:7^3
=7^3-3
=7^0
=1