so sánh 2300 và 3200
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So sánh 2300 và 3200
2300=(23)100=8100
3200=(32)100=9100
Vì 8100 < 9100
Nên 2300 < 3200
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2^300 = (2³)^100 = 8^100
3^200 = (3²)^100 = 9^100
Vì 8 < 9 nên 8^100 < 9^100 =>2^300 < 3^200.
3^200 = (3^2)^100 = 9^100
2^300= (2^3)^100=8^100
vi 9^100 > 8^100 suy ra 3^200 > 2^300
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2^300=2^(3.100)=(2^3)^100=8^100
3^200=3^(2.100)=(3^2)^100=9^100
Vì 8^100 < 9^100
=>2^300 < 3^200
Vay 2^300 < 3^200
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\(2^{300}=2^{3.100}=\left(2^3\right)^{100}=8^{100}\)
\(3^{200}=3^{2.100}=\left(3^2\right)^{100}=9^{100}\)
Vì \(8< 9\)
Nên \(8^{100}< 9^{100}\)
Vậy \(2^{300}< 3^{200}\)
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\(2^{300}=\left(2^3\right)^{100}=8^{100}\)
\(3^{200}=\left(3^2\right)^{100}=9^{100}\)
mà 8<9
nên \(2^{300}< 3^{200}\)
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A=2300=(23)100=8100
B=3200=(32)100=9100
DO 8100 < 9100 => A<B
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a) 164 = (24)4 = 216
85 = (23)5 = 215
Vì 216>215 nên 164>85
b) 277=(33)7=321
910=(32)10=320
Vì 321>320 nên 277>910
c) 2300=(23)100=8100
3200=(32)100=9100
Vì 8100 < 9100 nên 2300 < 3200
Vì 2 < 3 nên 2300< 3300
Ta có: \(2^{300}\)=\(\left(2^3\right)^{100}\)=\(8^{100}\)
\(3^{200}\)=\(\left(3^2\right)^{100}\)=\(9^{100}\)
Vì 8 > 9 nên \(8^{100}\)<\(9^{100}\)
Vậy\(2^{300}\)<\(3^{200}\)