MEDIUM
AP EAPCET
IMPORTANT
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Statement-I: Two lines which pass through a given fixed point and are equally inclined to two other lines passing through the same point, are always perpendicular to each other.
Statement-II: Angle bisectors of two intersecting lines are always perpendicular to each other.

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Important Questions on Pair of Straight Lines

MEDIUM
AP EAPCET
IMPORTANT
If the straight line 2x+3y+1=0 bisects the angle between a pair of lines, one of which in this pair is 3x+2y+4=0. Then, the equation of the other line in that pair of lines is
MEDIUM
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IMPORTANT
The equation of bisectors of the angle between the lines represented by 3x2-5xy+4y2=0 is
MEDIUM
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IMPORTANT
If the bisectors of the pair of lines x2-2mxy-y2=0 is represented by x2-2nxy-y2=0, then
MEDIUM
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IMPORTANT
The number of values of a for which the pair of lines represented by 3ax2+5xy+a2-2y2=0 are at right angles to each other, is
EASY
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IMPORTANT
Find the angle between the pair of lines represented by the equation x2+4xy+y2=0.
EASY
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IMPORTANT
If the acute angle between lines ax2+2hxy+by2=0 is π4, then 4h2=
MEDIUM
AP EAPCET
IMPORTANT
The angle between the lines represented by cosθ(cosθ+1)x2-2cosθ+sin2θxy+(1-cosθ)y2=0 is