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Question

LetP=(1,0),Q=(0,0) and  R=(3,33) be three points, Then the equation of the bisector of the angle PQR is  -
 
  1. x+3y=0
  2. 3x+y=0
  3. x+32y=0
  4. 32x+y=0


Solution

The correct option is B 3x+y=0
tanθ=3θ=600PQR=1200 
bisector will have slpe tan 1200
Equation of bisector is 3x+y=0

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