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Question

Find the angle between the straight lines x+12=y25=z+34 and
x11=y+22=z33

A
45o
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B
30o
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C
60o
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D
90o
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Solution

The correct option is D 90o
Given lines are x+12=y25=z+34 and x11=y+22=z33
The angle between the given lines is given by,
cosθ=(2)(1)+(5)(2)+(4)(3)4+25+161+4+9
=0
Therefore, θ=90o

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