\(125^4:\left(\dfrac{25}{4}\right)^6=5^{12}:\dfrac{5^{12}}{4^6}=4^6=4096\)
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\(125^4:\left(\dfrac{25}{4}\right)^6=5^{12}:\dfrac{5^{12}}{4^6}=4^6=4096\)
Tim tat ca cac so tu nhien n sao cho
a,23.32\(\ge\)2n>16
b,25<5n<625
tim chu so tan cung cac so sau
2009mu2009
tim cac so m,n nguyen duong la a
\(2^m-2^n=256\)
\(\dfrac{5^{^4}\cdot20^4}{25^5\cdot4^5}\)
5^4×20^4 phần 25^5×4^5
Bài 1.Chứng minh rằng
a)\(4^{51}+2^{104}+4^{53}⋮21\)
b)\(125^{10}+5^{31}+25^{16}⋮31\)
c)\(2^{25}+4^{13}+8^9⋮28\)
\(\dfrac{5^4\cdot20^4}{25^5\cdot4^5}\)
Tính
\(\dfrac{5^4}{25^5}\).\(\dfrac{20^4}{4^5}\)=
Tính :
\(M=\dfrac{8^{20}+4^{20}}{4^{25}+64^5}\)