题目尺规作图,请保留作图痕迹:(1)(1)(1)作出∠B\angle B∠B的角平分线.(2)(2)(2)延长ACACAC到点DDD,使得AC=CDAC=CDAC=CD.(3)(3)(3)在ACACAC上方作∠ACE=∠ACB\angle ACE=\angle ACB∠ACE=∠ACB,即ACACAC是∠BCE\angle BCE∠BCE的角平分线.知识点：垂线章节：图形的性质 / 相交线与平行线
尺规作图,请保留作图痕迹:尺规作图,请保留作图痕迹:尺规作图,请保留作图痕迹: