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P is a pt on base BC of triangle ABC and r1,r2,r3 are the inradii od triangle ABC, ACP, ABP respectively. h is altitude of triangle ABC from A. Prove that (1/ r2) + (1/ r3) – (r/ (r2*r3)) =2/ h

P is a pt on base BC of triangle ABC and r1,r2,r3 
are the inradii od triangle ABC, ACP, ABP respectively. h is altitude of  triangle ABC from A.
Prove that   (1/ r2) + (1/ r3) – (r/ (r2*r3)) =2/ h

Grade:11

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