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

Toán Lớp 7: `c) 2^3 . 3^5 .(2/3)^{5} . \frac{1}{4^{4}}` `d) (1/40)^{3} .1/4 .16^{3}

Toán Lớp 7: c) 2^3 . 3^5 .(2/3)^{5} . \frac{1}{4^{4}}
d) (1/40)^{3} .1/4 .16^{3}

Comments ( 2 )

  1. c)2^3.3^5.(2/3)^5.1/(4^4)
    =8.243.32/243.1/256
    =(8.1/256).(3^5.(2/3)^5)
    =1/32.32
    =1
    d)(1/40)³.1/4.16^3
    =[(1/40)³.16³].1/4
    =8/125.1/4.
    =2/125

  2. Giải đáp + Lời giải và giải thích chi tiết:
     c, 2^3 . 3^5 . (2/3)^5 . 1/4^4
    = 8. 243 . 32/243 . 1/256
    = 1944 . 32/243 . 1/256
    = 256 . 1/256
    = 1
    d, (1/40)^3 . 1/4 . 16^3
    = 1/64000 . 1/4 . 4096
    = 1/256000 . 4096
    = 2/125

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

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