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Consider a triangle ABC with vertex A(2,...

Consider a triangle ABC with vertex A(2, -4). The internal bisectors of the angles B and C are `x+y=2 and x-3y=6` respectively. Let the two bisectors meet at I.
Q. If (a, b) is incentre of the triangle ABC then `(a+b)` has the value equal to :

A

1

B

2

C

3

D

4

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The correct Answer is:
A
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