# Linear Algebra Questions 2

Anonymous

Question description

1) Fine the intersection of the three planes. Do they intersect in a point, a line or a plane?

2x-y-z=5, x-2y-5z=1, and 4x+4y-z=1

2)Are the two planes coincident, parallel or intersecting? If they intersect, find a vector equation for the line of intersetion

8x-4y+6z=2 and 12x-6y+9z=5

3) The line IR2 through P(2,3,0) orthogonal to both lines l1: (5,-2,6) + t<4,0,2> and l2: (0,4,4)+ t<-1.2.-1>

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