![](https://rs.olm.vn/images/avt/0.png?1311)
Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
a) 1024 9 = ( 2 10 ) 9 = 2 90 < 2 100
b) 6 . 5 29 > 5 . 5 29 = 5 30
c) 10 30 = ( 10 3 ) 10 = 1000 10 ; 2 100 = ( 2 10 ) 10 = 1024 10 n ê n 10 30 < 2 100 .
![](https://rs.olm.vn/images/avt/0.png?1311)
a) Cách 1: 2 100 = 2 10 10 = 1024 10 > 1024 9
Cách 2: 1024 9 = 2 10 9 = 2 90 < 2 100
b) 6 . 5 29 > 5 . 5 29 = 5 30
c) 2 98 = 2 2 49 = 4 49 < 9 49
d) 10 30 = 10 3 10 = 1000 10 ; 2 100 = 2 10 10 = 1024 10 nên 10 30 < 2 100
![](https://rs.olm.vn/images/avt/0.png?1311)
a, Ta có 10 30 = 10 3 10 = 1000 10
2 100 = 2 10 10 = 1024 10
Vì 1000<1024 nên 1000 10 < 1024 10
Vậy 10 30 < 2 100
b, Ta có: 333 444 = 333 4 111 = 3 . 111 4 111 = 81 . 111 4 111
444 333 = 444 3 111 = 4 . 111 3 111 = 64 . 111 3 111
Vì 81 > 64 và 111 4 > 111 3 nên 81 . 111 4 111 > 64 . 111 3 111
Vậy 333 444 > 444 333
c, Ta có: 21 5 = 3 . 7 15 = 3 15 . 7 15
27 5 . 49 8 = 3 3 5 . 7 2 8 = 3 15 . 7 16
Vì 7 15 < 7 16 nên 3 15 . 7 15 < 3 15 . 7 16
Vậy 21 5 < 27 5 . 49 8
d, Ta có: 3 2 n = 3 2 n = 9 n
2 3 n = 2 3 n = 8 n
Vì 8 < 9 nên 8 n < 9 n n ∈ N *
Vậy 3 2 n > 2 3 n
e, Ta có: 2017.2018 = (2018–1).(2018+1) = 2018.2018+2018.1–1.2018–1.1
= 2018 2 - 1
Vì 2018 2 - 1 < 2018 2 nên 2017.2018< 2018 2
f, Ta có: 100 - 99 2000 = 1 2000 = 1
100 + 99 0 = 199 0 = 1
Vậy 100 - 99 2000 = 100 + 99 0
g, Ta có: 2009 10 + 2009 9 = 2009 9 . 2009 + 1
= 2010 . 2009 9
2010 10 = 2010 . 2010 9
Vì 2009 9 < 2010 9 nên 2010 . 2009 9 < 2010 . 2010 9
Vậy 2009 10 + 2009 9 < 2010 10
![](https://rs.olm.vn/images/avt/0.png?1311)
\(10^{30}=\left(10^3\right)^{10}=1000^{10}\)
\(2^{100}=\left(2^{10}\right)^{10}=1024^{10}\)
mà \(1024^{10}>1000^{10}\)
\(\Rightarrow10^{30}< 2^{100}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
a ) 3 20 > 27 4 b ) 5 34 > 25 . 5 30 c ) 2 25 > 16 6 d ) 10 30 < 4 50
![](https://rs.olm.vn/images/avt/0.png?1311)
\(A=8^{200}=\left(2^3\right)^{200}=2^{600}=2^{100}\cdot2^{500}\\ B=2^{100}\cdot9^{150}=2^{100}\cdot\left(3^2\right)^{150}=2^{100}\cdot3^{300}\\ 2^{500}=32^{100};3^{300}=27^{100}\\ 32^{100}>27^{100}\Rightarrow2^{500}>3^{300}\\ \Rightarrow A>B\)
![](https://rs.olm.vn/images/avt/0.png?1311)
a: 5^30*25=5^30*5^2=5^32<5^34
b: 16^6=(2^4)^6=2^24<2^25
c: 10^30=1000^10
4^50=(4^5)^10=1024^10
=>10^30<4^50
![](https://rs.olm.vn/images/avt/0.png?1311)
a,
A=(2006+2).2008
A=2006.2008+2.2008
B=2006.(2008+2)
B=2006.2008+2006.2
Mà 2006.2008+2.2008>2006.2008+2006.2 => A>B
b, A=1030
B=2100=(210)10=102410
Vì 1030<102410=> A<B
Nhớ cho đúng cho mk nhé
![](https://rs.olm.vn/images/avt/0.png?1311)
\(a.10^{30}=\left(10^3\right)^{10}=1000^{10}\\ 2^{100}=\left(2^{10}\right)^{10}=1024^{10}\)
Vì 100010 < 102410 => 1030 < 2100
\(b,333^{444}=\left(111\cdot3\right)^{444}=111^{444}\cdot3^{444}=111^{444}\cdot81^{111}\\ 444^{333}=\left(111\cdot4\right)^{333}=111^{333}\cdot4^{333}=111^{333}\cdot64^{111}\)
Vì 111444 >111333 ; 81111 > 64111 => 333444 > 444333
A = 1030 = 103.10 = 100010
B = 2100 = 210.10 = 102410
=> A < B