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Mathematics 19 Online
OpenStudy (anonymous):

Please help with this problem! "The lines defined by Pt=(4+5 t, -1+2t) and Qu=(4-2u, -1+5u) interesect perpendicularly. Justify this statement. What are the coordinates of the point of intersection?"

OpenStudy (anonymous):

First reconsider the vectors of the given lines, I usually enjoy the vector standard form more then the one above: |dw:1363396214637:dw|

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