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a)\(333^{444}=3^{444}.111^{444}=\left(3^4\right)^{111}.111^{444}=81^{111}.111^{444}\)
\(444^{333}=4^{333}.111^{333}=\left(4^3\right)^{111}.111^{333}=64^{111}.111^{333}\)
Từ \(\hept{\begin{cases}81^{111}>64^{111}\\111^{444}>111^{333}\end{cases}}\Rightarrow81^{111}.111^{444}>64^{111}.111^{333}\Rightarrow333^{444}>444^{333}\)
b)\(5^{300}=\left(5^2\right)^{150}=25^{150};4^{453}=\left(4^3\right)^{151}=64^{151}\)
Vì 25150<64151 => 5300<4453
c)\(5^{217}>5^{216}=\left(5^3\right)^{72}=125^{72}>119^{72}\) => \(5^{217}>119^{72}\)
1030= (103)10= 100010
2100=(210)10=102410
1000<1024 =>100010<102410 nên 1030<2100
Câu b:
333^444 = (333^4)^111
444^333 = (444^3)^111
333^4 = 3^4.111^4 = 81.111^4
444^3 = 4^3.111^3 = 64.111^3 < 81.111^4
444^3< 333^4
(333^4)^111 > (444^3)^111
333^444 > 444^333
Câu 1:
5^300 và 3^453
5^300 = (5^2)^150 = 25^150
3^453 > 3^450 = (3^3)^150 = 27^150
25^150 < 27^150
Vậy 5^300 < 3^453
Câu 2:
5^217 và 119^72
5^217 > 5^216 = (5^3)^72 = 125^72 > 119^72
Vậy 5^217 > 119^72
a)333444=111444*3444=111444*(34)11=111444*8111
444333=111333*4333=111333*(43)11=111333*6411
Vì 111444>111333; 8111>6411 nên 111444*8111 > 111333*6411 hay 333444>444333
b)3450=(33)150=27150
5300=(52)150=25150
Vì 27>25 nên 27150>25150 hay 3450>5300
Câu a:
10^30 và 2^100
(10^3)^10 = 1000^10
2^100 = (2^10)^10 = 1024^10 > 1000^10
Vậy 10^30 < 2^100
333^444 = (333^4)^111
444^333 = (444^3)^111
333^4 = 3^4.111^4 = 81.111^4
444^3 = 4^3.111^3 = 64.111^3 < 81.111^4
444^3< 333^4
(333^4)^111 > (444^3)^111
333^444 > 444^333
a) Ta có : \(10^{30}=\left(10^3\right)^{10}=1000^{10}\)
\(2^{100}=\left(2^{10}\right)^{10}=1024^{10}\)
mà \(1000< 1024\)
\(\Rightarrow1000^{10}< 1024^{10}\)
\(\Rightarrow10^{30}< 2^{100}\)
b) Ta có : \(333^{444}=\left(111.3\right)^{444}=111^{444}.3^{444}=111^{444}.\left(3^4\right)^{111}=111^{444}.81^{111}\)
\(444^{333}=\left(111.4\right)^{333}=111^{333}.4^{333}=111^{333}.\left(4^3\right)^{111}=111^{333}.64^{111}\)
mà \(444>333\Rightarrow111^{444}>111^{333}\)
và \(81>64\Rightarrow81^{111}>64^{111}\)
\(\Rightarrow111^{444}.81^{111}>111^{333}.64^{111}\)
\(\Rightarrow333^{444}>444^{333}\)
c) Ta có : \(2^{161}>2^{160}=\left(2^4\right)^{40}=16^{40}>13^{40}\)
\(\Rightarrow2^{161}>13^{40}\)
d) Ta có : \(3^{453}>3^{450}=\left(3^3\right)^{150}=27^{150}>25^{150}=\left(5^2\right)^{150}=5^{300}\)
\(\Rightarrow3^{453}>5^{300}\)
a: 10^30=1000^10
2^100=1024^10
=>10^30<2^100
h: \(2^{91}=8192^7\)
5^35=3125^7
=>2^91>5^35
c: 19^20=2476099^4
9^8=81^4
=>19^20>9^8
d: 107^50=11449^25
73^75=389017^25
=>107^50<73^75
a)
333444=(3.111)444=3444.(1114)111=(34)111.444111=81111.444111
444333=(4.111)333=4333.111333=(43)111.(1113)111=64111.333111
vì 81111>64111và 444111>333111 nên 333444>444333
b)
2161=(24)40.2=1640.2
vì 1340<1640.2 nên 1340<2161
c)
5300=(52)150=25150
3453=(33)150.3=27150.3
vì 25150<27150.3 nên 5300<3453
d
5217=(53)72.5=12572.5
vì 12572.5 > 11972 nên\(5^{217}>119^{72}\)
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