如图,AD×AB=AE×AC.求证△FDB∽△FEC.都不要分了吗？紧急！

如图AB⊥AC,AD⊥AE,AB=AC,AD=AE.求证:△DAC≌三角形EAB 如图,已知AD/DB=AE/EC,求证 :AD/AB=AE/AC. 如图,平行四边形ABCD中,2AB=AD,AB=AE=BF,求证：EC⊥FD 如图,在平行四边形ABCD中,2AB=AD,AB=AE=BF,求证:EC⊥FD 如图,在△ABC中,DE∥BC,AD/BD=AE/EC,求证:AD/AB=AE/AC 已知:如图,AC/AD=AB/DE=BC/AE.求证AB=AE 已知,如图,AD/AC=DE/AB=AE/BC,求证AB=AE 已知,如图,AD:AC=DE:AB=AE:BC 求证：AB=AE 如图ab:bd=ae:ce,求证ab:ac=ad:ae 如图,AD⊥AE,AB垂直AC,AD=AE,AB=AC,AD⊥AE ,AB=AC,求证：三角形ABD≌三角形ACE 如图,在△ABC中,∠ACB=90°,CE⊥AB于E,AD=AC,AE平分∠CAE交CE于F,求证：FD//CB 如图,AB⊥AC,AD⊥AE,AB=AC,AD=AE.求证BE⊥CD 如图,AB⊥AC,AD⊥AE,AB=AC,AD=AE.求证BE⊥CD 如图,已知：AB=AE,AC=AD,AC⊥AD,AB⊥AE.求证：ED⊥BC. 如图 AB=AC,AD=AE,求证 △ACD全等△CBE 已知：如图,AB=AC,AD=AE.求证：△ABE≌△ACD. 已知：如图,AB=AC,AD=AE.求证：△ABE≌△ACD. 已知：如图,AB=AC,AD=AE.求证：△ABE≌△ACD