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\(0.125=0.5^3\)
\(0.25=0.5^2\)
\(\frac{1}{2}=\left(\frac{1}{2}\right)^1\)
\(\frac{1}{128}=\left(\frac{1}{2}\right)^7\)
Tìm giá trị lớn nhất của các biểu thức sau :
A=-x^+x+1
B=x(1-2x)
C=-x^-2y^+2xy-2y+2014
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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
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\(a,4\cdot9=36=6^2\)
\(b,1000\cdot10=10000=100^2\)
\(c,5^3\cdot5=5^4\)
Trả lời :
a) 4 = 22 9 = 32
b) 1000 . 10 . 10 = 103 . 102 = 105
c) 53 . 5 = 54
~~Học tốt~~
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a) \(8=2^3\)
\(16=4^2\)
\(27=3^3\)
\(81=9^2\)
\(100=10^2\)
b) \(1000=10^3\)
\(1,000,000=10^6\)
\(1,000,000,000=10^9\)
100.000 } 12 chữ số 0 = 10^12
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a: 6*6*6*6*6=6^5
b: 25*25*25*5=5^2*5^2*5^2*5=5^7
c: 8*2*2*16*4
=2^3*2^2*2^4*2^2
=2^11
d: \(3\cdot3\cdot3\cdot15\cdot5\cdot5\cdot5=15\cdot15\cdot15\cdot15=15^4\)
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a) a b c = a . 100 + b . 100 + c . 1 = a . 10 2 + b . 10 1 + c . 10 0
b) a b c d ¯ = a . 1000 + b . 100 + c . 10 + d = a . 10 3 + b . 10 2 + c . 10 1 + d . 10 0
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a) 538 = 5 . 100 + 3 . 10 + 8 . 1 = 5 . 10 2 + 3 . 10 1 + 8 . 10 0 .
b) 8609 = 8 . 1000 + 6 . 100 + 9 . 1 = 8 . 10 3 + 6 . 10 2 + 9 . 10 0 .
3.3.3.3.7.7 = 3^4 . 7^2
Ta có :
3 . 3 . 3 . 3 . 7 . 7
= 34 + 72