1. So sánh luỹ thừa
a. 275 và 2433x 36
Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
536=(53)12=12512
1124=(112)12=12112
12512.12112=>536>1124
Vậy 536>1124
a) \(a^9:a^7\cdot\left(a^2\right)^2\)
\(=a^9:a^7\cdot a^4\)
\(=a^2\cdot a^4\)
\(=a^6\)
b) \(\left(ab\right)^6:b^5:b\)
\(=a^6b^6:b^4\)
\(=a^6b^2\)
a) \(9x^2-12x+4=\left(3x-2\right)^2\)
b) \(25+10x+x^2=\left(x+5\right)^2\)
c) \(36x^2-25=\left(6x-5\right)\left(6x+5\right)\)
d) \(x^3-3x^2y+3xy^2-y^3=\left(x-y\right)^3\)
a: \(9x^2-12x+4=\left(3x-2\right)^2\)
b: \(x^2+10x+25=\left(x+5\right)^2\)
c: \(36x^2-25=\left(6x-5\right)\left(6x+5\right)\)
a) \(4^9:4^4\)
\(=4^{9-4}\)
\(=4^5\)
b) \(17^8:17^5\)
\(=17^{8-5}\)
\(=17^3\)
c) \(2^{10}:8^2\)
\(=2^{10}:\left(2^3\right)^2\)
\(=2^{10-6}\)
\(=2^4\)
d) \(18^{10}:3^{10}\)
\(=\left(18:3\right)^{10}\)
\(=6^{10}\)
e) \(27^5:81^3\)
\(=\left(3^3\right)^5:\left(3^4\right)^3\)
\(=3^{15}:3^{12}\)
\(=3^{15-12}\)
\(=3^3\)
f) \(10^6:100\)
\(=10^6:10^2\)
\(=10^{6-2}\)
\(=10^4\)
g) \(5^9:25^3\)
\(=5^9:\left(5^2\right)^3\)
\(=5^9:5^6\)
\(=5^{9-6}\)
\(=5^3\)
h) \(4^{10}:64^3\)
\(=4^{10}:\left(4^3\right)^3\)
\(=4^{10-9}\)
\(=4\)
i) \(2^{25}:32^4:18^4:9^4\)
\(=\left(2^{25}:2^{20}\right):\left(18^4\cdot9^4\right)\)
\(=2^5:9^8:2^4\)
\(=2:9^8\)
\(=\dfrac{2}{9^8}\)
5^300=(5^3)^100=125^100
3^500=(3^5)^100=243^100
Vì 125<243 nên 125^100<243^100
Vậy 125^100<243^100
tk cho mk nha bn
\(5^{300}=5^{3.100}=125^{100}\)
\(3^{500}=3^{5.100}=243^{100}\)
vì 125<243 nên \(5^{300}< 3^{500}\)
275 =(33)5= 315
2433 x 36 = (35)3 x 36 =315 x 36
Vì 315<315 x 36 nên 275 <2433 x 36