1.

If Δ0 is the area of Δ formed by joining the points of contact of incircle with sides of the given triangle whose area is Δ. Similarly Δ1,Δ2 and Δ3 are the corresponding areas of the triangles formed by joining the points of contact of excircles with the sides. Then the value of Δ1Δ+Δ2Δ+Δ3Δ−Δ0Δ is:

Answer» If Δ0 is the area of Δ formed by joining the points of contact of incircle with sides of the given triangle whose area is Δ. Similarly Δ1,Δ2 and Δ3 are the corresponding areas of the triangles formed by joining the points of contact of excircles with the sides. Then the value of Δ1Δ+Δ2Δ+Δ3ΔΔ0Δ is:


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