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

Toán Lớp 12: cho log2=a log3=b Tính A=log(9)20

Toán Lớp 12: cho log2=a log3=b Tính A=log(9)20

Comments ( 1 )

  1. Giải đáp:
    cho log2=a log3=b Tính A=log(9)20
    Log(9)20=2(9)+3(9)=4,992
     

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