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a.
A = 72^3.54^2/108^4
A = (72.54:108)^2:108^2.72
A = 36^2:108^2.72
A = (36:108)^2.72
A = (1/3)^2.72
A = 72/9
A = 8
B = \(\frac{3^{10}.11+3^{10}.5}{3^9.2^4}\)
B = \(\frac{3^{10}.\left(11+5\right)}{3^9.2^4}\)
B = \(\frac{3^{10}.16}{3^9.16}\)
B = 3
a.87 .914 .255 tren 6253 .1812 .243 =(23 )7 .(32 )14 .(52)5 tren (54 )3 .(2.32 )12 .(23 .3)3 =221 .328 .510 tren 512 .(2.32 )12 .(23 .3)3 =217 .325 tren 52 .1.1=217.325 tren 25.
b.(3.128.216 )2 tren (2.4.8.16.32.64)2 =(3.27 .216 )2 tren (2..22 .23 .24 .25 .26 )2 =(3.223 )2 tren (221 )2 =(3.22 )2 tren 1=122 =144
c.4.312 +5.311 tren 39 .23 -39 .52 =4.311 .3+5.311 tren 39 .(23 -52 )=(4+5).311 .3 tren 39 .(8-25)=9.312 tren 39 .(-17)=32 .312 tren 39 .(-17)=314 tren 39 .(-17)=35 tren -17.
hihi ko bt dung ko nua
a) (247 x 514 x 213 x 913 x 517 x 917 ) : (230 x 230 x 530 x 930)
(260 x 531 x 930) : (260 x 530 x 930) = 5
\(A=\frac{9^{14}.25^5.8^7}{18^{12}.625^{324}.24^3}\)
\(A=\frac{\left(3^2\right)^{14}.\left(5^2\right)^5.\left(2^3\right)^7}{2^{12}.9^{12}.\left(5^4\right)^{324}.3^3.8^3}\)
\(A=\frac{3^{28}.5^{10}.2^{21}}{2^{12}.\left(3^2\right)^{12}.5^{1296}.3^3.\left(2^3\right)^3}\)
\(A=\frac{3^{28}.5^{10}.2^{21}}{2^{21}.3^{24}.5^{1296}.3^3.2^9}\)
\(A=\frac{3^{28}.5^{10}.2^{21}}{2^{30}.3^{27}.5^{1296}}\)
\(A=\frac{3}{2^9.5^{1286}}\)
CẢM ƠN BẠN NHÉ!