Question
Mathematics Question on Angle between a Line and a Plane
If one of the lines ax2+2hxy+by2=0 bisects the angle between positive directions of the axes then a,h,b satisfy the relation
A
a+b=-2h
B
(a-b)2=4h2
C
a+b=2|h|
D
(a-b)=2|h|
Answer
a+b=-2h
Explanation
Solution
The correct option is (A): a+b=-2h