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

Toán Lớp 6: cho F= (2^15. 5^3. 2^6. 3^4)/ (8. 2^18. 81. 5)

Toán Lớp 6: cho F= (2^15. 5^3. 2^6. 3^4)/ (8. 2^18. 81. 5)

Comments ( 2 )

  1. F= (2^15. 5^3. 2^6. 3^4)/ (8. 2^18. 81. 5)
    = (2^15. 5^3. 2^6. 3^4)/ (2^3. 2^18. 3^4. 5)
    = (2^21. 3^4. 5^3)/(2^21. 3^4. 5)
    = 5^3/5
    = 5^2
    = 25

  2. F = (2^15 . 5^3 . 2^6 . 3^4)/(8 . 2^18 . 81 . 5)
    F = (2^15 . 2^6 . 5^2 . 5 . 3^4)/(2^3 . 2^18 . 3^4 . 5)
    F = (2^21 . 5^2 . 5 . 3^4)/(2^21 . 3^4 . 5)
    F = 5^2
    F = 25
     

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

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