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

Toán Lớp 7: $\frac{1}{2}$ . $\sqrt[]{64}$ – $\sqrt[]{\frac{4}{25} }$ + (-1)$^{2007}$

Toán Lớp 7: $\frac{1}{2}$ . $\sqrt[]{64}$ – $\sqrt[]{\frac{4}{25} }$ + (-1)$^{2007}$

Comments ( 2 )

  1. 1/2 . \sqrt64 – \sqrt(4/25) + (-1)^{2007}
    = 1/2 . 8 – 2/5 + (-1)
    = 4 – 2/5 + (-1)
    = 18/5 + (-1)
    = 13/5

  2. Lời giải chi tiết:
    1/(2).\sqrt{64}-\sqrt{\frac{4}{25}}+(-1)^2007
    =1/(2).8-2/5+(-1)
    =4-2/5+(-1)
    =18/5+(-1)
    =13/5

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

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