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

Toán Lớp 6: Tinh gia tri bieu thức A=(55+57+…+215+217)(3^1+3^2+…+3^10)(3^3.41.283-769.123-42.5207)

Toán Lớp 6: Tinh gia tri bieu thức A=(55+57+…+215+217)(3^1+3^2+…+3^10)(3^3.41.283-769.123-42.5207)

Comments ( 1 )

  1. Giải đáp:
     A=0
    Lời giải và giải thích chi tiết:
    A=(55+57+…+215+217)(3^1+3^2+…+3^10)(3^{3}.41.283-769.123-42.5207)
    A=(55+57+…+215+217)(3^1+3^2+…+3^10)(41.7641-2307.41-42.5207)
    A=(55+57+…+215+217)(3^1+3^2+…+3^10)[41.(7641-2307)-42.5207]
    A=(55+57+…+215+217)(3^1+3^2+…+3^10)(41.5334-42.5207)
    A=(55+57+…+215+217)(3^1+3^2+…+3^10)(41.5334-41.5207-5207)
    A=(55+57+…+215+217)(3^1+3^2+…+3^10)(41.127-5207)
    A=(55+57+…+215+217)(3^1+3^2+…+3^10)(5207-5207)
    A=(55+57+…+215+217)(3^1+3^2+…+3^10).0
    A=0

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