Bài làm
\(A=\frac{45^{10}\cdot5^{20}}{75^{15}}\)
\(A=\frac{\left(3^2\right)^{10}\cdot5^{10}\cdot5^{20}}{3^{15}\cdot\left(5^2\right)^{15}}\)
\(A=\frac{3^{20}\cdot5^{30}}{3^{15}\cdot5^{30}}\)
\(A=3^5\)
Vậy \(A=3^5\)
\(B=\frac{2^{15}\cdot5^{20}}{6^6\cdot8^3}\)
\(B=\frac{2^{15}\cdot5^{20}}{2^6\cdot3^3\cdot\left(2^3\right)^3}\)
\(B=\frac{2^{15}\cdot5^{20}}{2^{15}\cdot3^3}\)
\(B=\frac{5^{20}}{3^3}\)
Vậy \(B=\frac{5^{20}}{3^3}\)
Rút gọn
a) \(\frac{45^{-10}.5^{20}}{75^{15}}\)
b) \(\frac{2^{15}.9^4}{6^6.8^2}\)
Giúp mik vs mik cần gấp
a,\(\frac{45^{10}.5^{10}}{75^{10}}\) b,\(\frac{\left(0,8\right)^5}{\left(0,4\right)^6}\) c,\(\frac{2^{15}.9^4}{6^6.8^3}\) d,\(\frac{15^{30}}{45^{15}}\)
Rút gọn
a) \(\frac{45^{-10}.5^{20}}{75^{15}}\)
b) \(\frac{2^{15}.9^4}{6^6.8^2}\)
làm ơn giúp mik vs ạ mik đag cần rất gấp
Tính GTBT
M=\(\frac{8^{20}+4^{20}}{4^{25}+64^5}\)
N= \(\frac{6^6+6^3.3^3+3^6}{73}\)
T=\(\frac{45^{10}.5^{20}}{75^{15}}\)
thực hiện phép tính sau :
\(\left[\dfrac{\left(0,8\right)^5}{\left(0,4\right)^6}+\dfrac{2^{15}.9^4}{6^6.8^3}\right]:\dfrac{45^{10}.5^{20}}{7^{15}}\)
Tìm giá trị biểu thức sau: 45^10.5^20/75^15. b) (0.8)^5/(0.4)^6. c) 2^15.9^4/6^6.8^3.
Tính
a) 45^10 * 5^20 / 75^15
b) (0,125)^3 * 512
c) 2^15 * 9^4 / 6^6 * 8^3
Tính:
a) ( 0,8 )^5 / (0,4)^6
b) ( 0,125 )^3 * 512
c) 45^10 * 5^20 / 75^15
d) 2^15 * 9^4 / 6^6 * 8^3
* là nhân nhé. RẤT CẦN
Tính hợp lí
a) \(\left(4\frac{5}{37}-3\frac{4}{5}+8\frac{15}{29}\right)-\left(3\frac{5}{37}-6\frac{14}{29}\right)\)
b) \(\left(\frac{7}{20}+\frac{11}{15}-\frac{15}{12}\right):\left(\frac{11}{20}-\frac{26}{45}\right)\)
