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

Toán Lớp 7: (2/3)mũ0 nhân (2/3)mũ5.8mũ10/4mũ8

Tháng Tám 14, 2022 Toán học 2 Comments 0 views

Toán Lớp 7: (2/3)mũ0 nhân (2/3)mũ5.8mũ10/4mũ8

Comments ( 2 )

  1. hienchaudiem
    hienchaudiem
    14 Tháng Tám, 2022 at 9:11 chiều
    Reply
    {(2/3)^{0} . (2/3)^{5} . 8^{10}}/4^{8}
    = {(2/3)^{5} . (2^{3})^{10}}/(2^{2})^{8}
    = {(2/3)^{5} . 2^{30}}/2^{16}
    = {(2/3)^{5} . 2^{14}}/1
    = (2/3)^{5} . 2^{14}
    = 32/243 . 2^{14}
    = 2^{5}/243 . 2^{14}
    = 2^{5}.2^{14}/243
    = 2^{19}/243
    = 524288/243
     

  2. cobexinhdep
    cobexinhdep
    14 Tháng Tám, 2022 at 9:11 chiều
    Reply
    ~ Bạn tham khảo ~
    (2/3)^0 . (2/3)^5 . (8^10)/(4^8)
    = (2/3)^5 . ((2^3)^10)/((2^2)^8)
    = (2/3)^5 . (2^30)/(2^16)
    =(2/3)^5 . 2^14
    = 32/243 . 2^14
    = ( 32 . 2^14)/243
    = (2^5 . 2^14)/243
    =(2^19)/243
    $#Vịt vàng$

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

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