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Thủ thuật CASIO: Trong không gian Oxyz cho A(1;0;0),B(3;2;0) C (-1;2;4).Điểm M thay đổi saocho MA,
10 months ago
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Trong không gian Oxyz cho A(1;0;0),B(3;2;0) C (-1;2;4).Điểm M thay đổi sao
cho MA,MB,MC hợp với mặt phẳng (ABC) các góc bằng nhau.Điểm N thay đổi trên
mặt cầu (S):(x-3)^2+(y-2)^2+(z-3)^2=1/2 . Giá trị nhỏ nhất của MN là bao nhiêu?
A.√2/2 B.√5 C.√2 D.(3√2)/2
#ThuThuatCASIO
#CachBamCASIO
#ToanLop12
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