Abc is a triangle in which ab = ac . A circle passing through b and c intersects the sides ab and ac at point d and e respectively .Prove that de|| bc
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it may be by mid point theorm
so. triangle ade= triangle ecf
by cpct ad parellel cf
so then bced will parllelogram and
de ll bc
so. triangle ade= triangle ecf
by cpct ad parellel cf
so then bced will parllelogram and
de ll bc
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