\(\dfrac{45^{10}.5^{20}}{75^{15}}\)
\(=\dfrac{9^{10}.5^{10}.5^{20}}{25^{15}.3^{15}}\)
\(=\dfrac{3^{20}.5^{30}}{5^{30}.3^{15}}\)
\(=3^5=243\)
\(\dfrac{45^{10}.5^{20}}{75^{15}}\)
\(=\dfrac{9^{10}.5^{10}.5^{20}}{25^{15}.3^{15}}\)
\(=\dfrac{3^{20}.5^{30}}{5^{30}.3^{15}}\)
\(=3^5=243\)
45^10.5^20/75^15
45^10.5^20 phần75^15
\(\dfrac{45^{10}.5^{20}}{75^{15}}\)
\(\dfrac{45^{10}.5^{20}}{75^{15}}\)
\(\dfrac{2^{15}.9^4}{6^68^3}\)
Chứng tỏ rằng \(75^{20}=45^{10}\cdot25^{15}\)
Ai làm được thì vào đây trổ tài nào
tìm giá trị của các biểu thức sau
a) \(\dfrac{45^{10}.5^{20}}{75^{15}}\)
b) \(\dfrac{\left(0,8\right)^5}{\left(0,4\right)^6}\)
chứng tỏ rằng
7520 = 4510.530
1.Tính :
a) 1253 : 57
b) \(\left(\dfrac{2}{7}\right)^{18}:\left(\dfrac{4}{49}\right)^5:\left(\dfrac{8}{343}\right)^2\)
c) 3 - \(\left(-\dfrac{7}{9}\right)^0+\left(\dfrac{1}{3}\right)^5.3^5\)
d) \(\dfrac{45^{10}.5^{20}}{75^{15}}\)
Tính:
N = \(\dfrac{6^6+6^3.3^3+3^6}{-73}\)
T= \(\dfrac{45^{10}.5^{10}}{75^{15}}\)