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

Toán Lớp 12: Giải phương trình lôgarit Log4x + log2x + log8x = 11/16

Toán Lớp 12: Giải phương trình lôgarit
Log4x + log2x + log8x = 11/16

Comments ( 1 )

  1. Log_4x + log_2x + log_8x = 11/16         (x>0)
    <=> 1/2log_2x+log_2x+1/3log_2x=11/16
    <=> 11/6log_2x=11/16
    <=>log_2x=3/8
    <=>x=root(8)(8) (TM)

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

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