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222-9+11+12:2*14+14 = ? ( )

Toán Lớp 7: D = 2^13 . 9^4 ___________ 6^6 . 8^3

Toán Lớp 7: D = 2^13 . 9^4
___________
6^6 . 8^3

Comments ( 2 )

  1. Giải đáp+Lời giải và giải thích chi tiết:
     D=(2^13 . 9^4)/(6^6 . 8^3)
    =(2^13 . (3^2)^4)/((2.3)^6 . (2^3)^3)
    =(2^13 . 3^8)/(2^6 .3^6 . 2^9)
    =(2^13 . 3^8)/(2^15 . 3^6)
    =(1. 3^2)/(2^2)
    =9/4

  2. D=(2^{13}.9^4)/(6^{6}.8^3)
    D=(2^{13}.3^8)/(2^{6}.3^{6}.2^9)
    D=(3^2)/(2^2)
    D=9/4
     

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222-9+11+12:2*14+14 = ? ( )