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

Toán Lớp 9: Căn4-2căn3 – 2/căn3 -1 Làm 10 phút nữa huhu

Toán Lớp 9: Căn4-2căn3 – 2/căn3 -1
Làm 10 phút nữa huhu

Comments ( 1 )

  1. \sqrt{4-2\sqrt{3}} – \frac{2}{\sqrt{3}-1} 
    =\sqrt{3}-1 – \frac{2}{\sqrt{3}-1}
    =\sqrt{3}-1-1-\sqrt{3}
    =(-1)-1
    =-2

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