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Consider a triangle PQR with coordinates...

Consider a triangle PQR with coordinates of its vertices as P(-8,5), Q(-15,-19), and R(1,-7). The bisector of the interior angle of P has the equation which can be written in the form `ax+2y+c=0`
The sum a+c is

A

129

B

78

C

89

D

none of these

Text Solution

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The correct Answer is:
C
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