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a) \(2.2.2.2.3.3.3.3=2^4.3^4\)
b) \(2.33.5555=2^1.3^2.5^4\)
c) \(5.5.5.5.4.4.4=5^4.4^3\)
d) \(8.8.10.25.16=2^3.2^3.2.5.5^2.2^4=2^{11}.5^3\)
a/ 5.5.5.5.5.5=56
b/6.6.6.3.2=6.6.6.6=64
c/2.2.2.3.3=23.32
d/100.10.10.10=10.10.10.10.10=105
a, \(=7.7.5.5.5^2=7^2.5^4\)
b, \(=2.3.2.3.3.2^2=3^3.2^4\)
c, \(=5^4\)
xin tiick
\(a,4\cdot9=36=6^2\)
\(b,1000\cdot10=10000=100^2\)
\(c,5^3\cdot5=5^4\)
Trả lời :
a) 4 = 22 9 = 32
b) 1000 . 10 . 10 = 103 . 102 = 105
c) 53 . 5 = 54
~~Học tốt~~
1.
a) \(3^4\times3^5\times3^6=3^{4+5+6}=3^{15}\)
b) \(5^2\times5^4\times5^5\times25=5^2\times5^4\times5^5\times5^2=5^{2+4+5+2}=5^{13}\)
c) \(10^8\div10^3=10^{8-3}=10^5\)
d) \(a^7\div a^2=a^{7-2}=a^5\)
2.
\(987=900+80+7\\ =9\times100+8\times10+7\\ =9\times10^2+8\times10^1+7\times10^0\)
\(2021=2000+20+1\\ =2\times1000+2\times10+1\times1\\ =2\times10^3+2\times10^1+1\times10^0\)
\(abcde=a\times10000+b\times1000+c\times100+d\times10+e\times1\\ =a\times10^4+b\times10^3+c\times10^2+d\times10^1+e\times10^0\)
a: \(3\cdot3\cdot3\cdot3\cdot3=3^5\)
b: \(y\cdot y\cdot y\cdot y=y^4\)
c: \(5\cdot p\cdot5\cdot p\cdot2\cdot q\cdot4\cdot q=25\cdot2\cdot4\cdot p^2q^2=2\cdot\left(10qp\right)^2\)
d: \(a\cdot a+b\cdot b+c\cdot c+d\cdot d\cdot d\cdot d=a^2+b^2+c^2+d^4\)
a) 56
b) 24. 34
c) 104
#Hientrang
a, 56
b,24 x 34 = 64
c, 100 x 100 = 1002