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Angle between Two Planes

34. Let ABC b...

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34. Let ABC be a triangle. Let A be the point (1,2), y=x is the perpendicular bisector of AB and x-2y+1=0 is the angle bisector of angle C. If the equation of BC is given by ax+by-5=0,then the value of a + b i

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A B C

be triangle. Let

A

(1, 2), y = x

be the perpendicular bisector of

A B

x - 2 y + 1 = 0

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∠ C

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a x + b y - 5 = 0

, then the value of

a + b

A B C

be a triangle. Let

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a x + b y - 5 = 0,

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Q. Let A, B, C be angles of triangle ABC with vertex A

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are internal angle bisectors through B and C respectively. Let D, E, F be points of contact of sides bisector of A, B, C, then equation of circumcircle of triangle DEF is

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