Toán Lớp 7: (0,2)^5.(0,6)^4/(0.2)^7.(0.3)^4
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Toán Lớp 7: (0,2)^5.(0,6)^4/(0.2)^7.(0.3)^4
Comments ( 1 )
={0,2^5 . 0,2^4 . 0,3^4}/{0,2^7 . 0,3^4}
={0,2^7 . 0,3^4 . 0,2^2}/{0,2^7 . 0,3^4}
=0,2^2
=0,04