+413 Q.1 Let ABC be a right-angled triangle with ∠B = 90◦ . Let I be the incentre of ABC. Draw a line perpendicular to AI at I. Let it intersect the line CB at D. Prove that CI is perpendicular to AD and prove that ID = p b(b − a) where BC = a and CA = b
i need help for olympiads
http://olympiads.hbcse.tifr.res.in/olympiads/wp-content/uploads/2016/11/QPcrmo-16_1.pdf
