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Question

Lines x2=y1=z21 x22=y+11=3z5 are lines.

A
parallel
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B
perpendicular
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C
coincident
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D
intersecting in an acute angle
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Solution

The correct option is B perpendicular
The drs of first line is (2,1,1)
The drs of second line is (2,1,5)
Consider 2(2)+1(1)+1(5)4+15=0
hence the lines are perpendicular.

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