8^20 + 4^20 / 4^25 + 64^5
= 2^60 + 2^40 / 2^50 + 2^30
= 2^40 x (2^20 +1) / 2^30 x (2^20 +1)
= 2^10
= 1024
chúc bạn làm zui zẻ + tốt nhé
8^20+4^20/4^25+64^5
Tính
\(\frac{8^{20}+4^{20}}{4^{25}+64^5}\)
Tính :
a)\(\dfrac{8^{20}.4^{10}}{16^{21}}\)
b)\(\dfrac{8^{20}+4^{20}}{4^{25}+64^5}\)
a,\(\dfrac{8^{20}+4^{20}}{4^{25}+64^5}\)
b,\(\left(1+\dfrac{2}{3}-\dfrac{1}{4}\right).\left(\dfrac{4}{5}-\dfrac{3}{4}\right)^2\)
c,\(23\dfrac{1}{3}:\left(\dfrac{-5}{7}\right)-13\dfrac{1}{3}:\left(\dfrac{-5}{7}\right)\)
d,1:\(\left(\dfrac{2}{3}-\dfrac{3}{4}\right)^2\)
e,\(\dfrac{45^{10}.5^{20}}{75^{15}}\)
Tính :
a)\(\frac{8^{14}}{4^{12}}\)
b)\(\frac{120^3}{40^3}\)
Thực hiện phép tính:
a)\(\frac{45^{10}.5^{20}}{75^{15}}\)
\(\frac{8^{20}+4^{20}}{4^{25}+64^5}\)
Tìm x:
a)5(x -2)(x +3)= 1
b) x2 - 0,25 =0
c) \(\frac{8}{2^x}=2\)
d)\(\left(\frac{3}{4}\right)^x=\frac{2^8}{3^4}\)
Tính:
\(25^{10}.\left(\frac{1}{5}\right)^{20}+\left(\frac{3}{4}\right)^8.\left(-\frac{4}{3}\right)^8-2011^0\)
Thực hiện phép tính \(\dfrac{4^5.9^{4^{ }}-2.6^{9^{ }}}{2^{10^{ }}.3^{8^{ }}+6^{8^{ }}.20}:\sqrt{\dfrac{25}{9}}\)
Tính
5^5 . 20^4 / 25^5 . 4^5
1) \(25^{10}.\left(\dfrac{1}{5}\right)^{20}+\left(\dfrac{-3}{4}\right)^8.\left(\dfrac{-4}{3}\right)^8-2018^0\)
2) \(\left(\dfrac{5}{2}-\dfrac{4}{3}\right).\dfrac{6}{7}+\left(\dfrac{-3}{2}\right)^5:\left(\dfrac{-3}{2}\right)^3\)
3) \(\dfrac{4^5.9^4-2.6^9}{3^8.2^{10}+6^8.20}\)