the vertices of a triangle ABC are A(5,3) , B(-3,9) and c(8,-1). Equation of angular bisector through A is
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Co−ordinatesofpointD=(
2
15−9
,
2
−2−8
)
=(3,−5)
EquationofthelineADis
y−11
x+1
=
−5−11
3+1
=>
y−11
x+1
=
−16
4
=>(−4)(x+1)=y−11
=>−4x−4=y−11
=>4x+y=7
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