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

Toán Lớp 7: 1. ( $\sqrt{}$1$\frac{7}{9}$ – $\sqrt{}$1$\frac{13}{36}$ ) : $\sqrt{}$$\frac{196}{49}$ 2. $\sqrt{(\sqrt{3-1})mũ2 }$ + $\sqrt{(\sqrt{3

Toán Lớp 7: 1. ( $\sqrt{}$1$\frac{7}{9}$ – $\sqrt{}$1$\frac{13}{36}$ ) : $\sqrt{}$$\frac{196}{49}$
2. $\sqrt{(\sqrt{3-1})mũ2 }$ + $\sqrt{(\sqrt{3+4})mũ2 }$
ai làm đc ko ạ giải hộ mih vs

Comments ( 2 )

  1. Đây nha bạn
    ĐÚNG CHX ZZZZZZZZZZZZ

    toan-lop-7-1-sqrt-1-frac-7-9-sqrt-1-frac-13-36-sqrt-frac-196-49-2-sqrt-sqrt-3-1-mu2-sqrt-sqrt-3

  2. Giải đáp+Lời giải và giải thích chi tiết:
     1)(\sqrt{ 1 7/9} – \sqrt{1 13/36}) : \sqrt{196/49}
    =(\sqrt{16/9} -\sqrt{49/36}) : \sqrt{4}
    =(4/3 -7/6) :2
    =(8/6 -7/6):2
    =1/6 .1/2
    =1/12
    2)\sqrt{(\sqrt{3-1})^2} +\sqrt{(\sqrt{3+4})^2)
    =\sqrt{(\sqrt{2})^2}+\sqrt{(\sqrt{7})^2}
    =|\sqrt{2}|+|\sqrt{7}|
    =\sqrt{2}+\sqrt{7}

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

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