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

Toán Lớp 8: tìm dư khi chia `x^ 29` cho `x^2 + 1` giúp e vssssssssssssssssssssssssssssssssssssssssssssss

Toán Lớp 8: tìm dư khi chia x^ 29 cho x^2 + 1
giúp e vssssssssssssssssssssssssssssssssssssssssssssss

Comments ( 1 )

  1. ~ gửi bạn ~
    Ta viết: x^29 = x^29 – x + x = x(x^28 – 1) + x
    Nhưng x^28 = (x^4)^7 – 1 $\vdots$ x^4 – 1 và x^4 – 1 = (x^2 – 1)(x^2 + 1) $\vdots$ x^2 + 1
    $\Rightarrow$ x^28 – 1 $\vdots$ x^2 + 1
    Vậy đa thức r(x) = x
     
     

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

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