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Questions  

The slope of the line which is perpendicular to the angular bisector of axes which makes obtuse angle is

a
3
b
2
c
1
d
4

detailed solution

Correct option is A

The angular bisector of axes are y=x,y=−xIn the above two lines, the slope of the line y=−x is negative, it means inclination is obtuse,The slope of the line of the perpendicular to the line  y=−x is m=1

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