1.so sanh: \(a,A=2009^{2010}+2009^{2009}va\)\(B=2010^{2010}\)2.so sanh cac so...
Đọc tiếp
1.so sanh: \(a,A=2009^{2010}+2009^{2009}va\)\(B=2010^{2010}\)
2.so sanh cac so sau:
a,\(9^{21}\)va \(729^7\)
b,\(7^{14}\)va \(50^7\)
c,\(5^{30}\)va \(124^{10}\)
d,\(31^{11}\)va \(17^{14}\)
e,\(5^{36}\)va \(7^{24}\)
g,\(625^5\)va \(125^7\)
i,\(3^{2n}\)va \(2^{3n}\left(n\inℕ^∗\right)\)
m,\(5^{23}\)va \(6.5^{22}\)
f,\(7.2^{13}\)va \(2^{16}\)
h,\(21^{15}\)va \(27^5.49^8\)
k,\(199^{20}\)va \(2003^{15}\)
1.a=2009^2009(2009+1)
=2009^2009x2010. tự cm nốt
e tách số mũ ra nhé
a^m>a^n(m>n>0)