buikhaihung2235 buikhaihung2235
  • 25-01-2024
  • Mathematics
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tìm giao điểm của đt: (x-6)/3 = (y+2)/(-6) = (z-2)/4 với ellipsoid: x^{2} /81 = y^{2}/81 + z^{2}/9 =1

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