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    Pre-U Vector Question

    Hello, I'm struggling with the question below. The plane with equation 2x + 2y − z = 5 is denoted by m. Relative to the origin O, the points A has coordinate (1, 2, 1) which is in m.A second plane p is parallel to m and nearer to O. The perpendicular distance between the planes is...
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    Pre-U Vector Question: Line has equation r = 9i − j + 8k + λ(3i − j + 2k)

    Pre-U Vector Question: Line has equation r = 9i − j + 8k + λ(3i − j + 2k) Hello, I'm having trouble answering this question. Q: Relative to the origin O, the point A has position vector given by OA = i + 2j + 4k. The line l has equation r = 9i − j + 8k + 3i − j + 2k ...
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