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

Toán Lớp 11: b, $\frac{2cos4x + 1}{2cos2x – 1}$ = 0

Toán Lớp 11: b, $\frac{2cos4x + 1}{2cos2x – 1}$ = 0

Comments ( 2 )

  1. Đáp án:
     
    Giải thích các bước giải:
     

    toan-lop-11-b-frac-2cos4-1-2cos2-1-0

  2. chúc bn học tốt vote mk 5* và ctlhn nhé
     

    toan-lop-11-b-frac-2cos4-1-2cos2-1-0

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