# Incircle and Excircles of right triangle 2

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In a right triangle $$ABC$$ $$C$$=$$90^\circ$$. $$AB$$=$$17$$.Let $$a$$, $$b$$ , $$c$$ and $$d$$ denote radius of incircle and three excircles respectively.Find $$a^2$$+$$b^2$$+$$c^2$$+$$d^2$$

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