\(\dfrac{2^7.9^4}{4^3.3^9}=\dfrac{2^7.\left(3^2\right)^4}{\left(2^2\right)^3.3^9}=\dfrac{2^7.3^8}{2^6.3^9}=\dfrac{2}{3}\)
\(=\dfrac{2^7\cdot3^8}{2^6\cdot3^9}=\dfrac{2}{3}\)
\(\dfrac{2^7.9^4}{4^3.3^9}=\dfrac{2^7.\left(3^2\right)^4}{\left(2^2\right)^3.3^9}=\dfrac{2^7.3^8}{2^6.3^9}=\dfrac{2}{3}\)
\(=\dfrac{2^7\cdot3^8}{2^6\cdot3^9}=\dfrac{2}{3}\)
\(\dfrac{2^7.9^4}{4^4.3^9}\)
\(\dfrac{2^7.9^4}{4^4.3^9}\)
a,3/2-5/6:(1/2)2+\(\sqrt{0,25-\sqrt{\dfrac{1}{4}}}\)
b,-4/3:2/9+13/12:-13/8
c,(-1/2)2-[-1/6:|-1+5|-\(\sqrt{64}.\left(\dfrac{1}{4}\right)^2\)
d,15^11.5^7.9^2/5^18.27^6
\(\dfrac{4}{3.5}+\dfrac{4}{5.7}+\dfrac{4}{7.9}+......+\dfrac{4}{97.95}\)
Tính giá trị các biểu thức:
\(\dfrac{4}{5.7}+\dfrac{4}{7.9}+...+\dfrac{4}{59.61}\)
A=\(\dfrac{4}{3.5}-\dfrac{6}{5.7}+\dfrac{8}{7.9}-\dfrac{10}{9.11}+\dfrac{12}{11.13}-...-\dfrac{100}{99.100}\)
Tính giá trị của A
Tính giá trị biểu thức
P=\(\dfrac{2^{12}.3^5-4^6.9^2}{\left(2^3.3\right)^6+8^4.3^5}-\dfrac{5^{10}.7^3-25^5.49^2}{\left(125.7\right)^3+5^9.14^3}\)
tính giá trị
a,\(\dfrac{\left(-3\right)^7.2^8}{6^7}\)
b,\(\dfrac{-3.7^4+7^3}{7^5.6-7^3.2}\)
c,\(\dfrac{5^3.3^5}{5^3.0.5+125.2.5}\)
Giúp mình với
a,\(\dfrac{-8}{9}\)-(\(\dfrac{6}{5}\)-\(\dfrac{8}{9}\))
b, \(\dfrac{-4}{9}\)+\(\sqrt{\dfrac{9}{16}}\)-\(\dfrac{4}{5}\).\(\dfrac{-1^2}{2}\)+25%
c,\(\dfrac{2}{3}\)+(\(\dfrac{-3}{4}\)).\(\dfrac{4}{9}\)
d,16\(\dfrac{3}{4}\) - (-\(\dfrac{6}{5}\)) - 28\(\dfrac{3}{4}\):(-\(\dfrac{6}{5}\))
thực hiện phép tính
A=2^12.3^5 - 4^6.9^2/(2^2.3)^6 + 16^3.3^10+120.6^9/4^6.3^12+6^12