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Find the length of the perpendicular drawn from the point`(5,4,-1)` to the line ` vec r= hat i+lambda(2 hat i+9 hat j+5 hat k),` wher `lambda` is a parameter.

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Find the length of the perpendicular drawn from the point (5,4,-1) . to the line vec r= hat i+lambda(2 hat i+9 hat j+5 hat k)dot

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