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Bộ 23 đề thi thử THPTQG năm 2018 - Môn Toán - Gv Đặng Việt Đông - Lovebook - Có lời giải chi tiết

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Vì ( P ) tiếp xúc với mặt cầu ( S ) nên<br />

−1− 2+ m m<br />

= 5<br />

d ( I; ( P)<br />

) = R = 2 <br />

2<br />

m<br />

= 1<br />

x+ z+ 5=<br />

0<br />

( P)<br />

: .<br />

x<br />

+ z + 1 = 0<br />

.

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