√12-³√-27+(-2/(√5-1)的-1次方-√0.5
问题描述:
√12-³√-27+(-2/(√5-1)的-1次方-√0.5
答
√12-³√-27+[-2/(√5-1)]-¹-√0.5
=2√3+3-(√5-1)/2-√2/2
=2√3+3-√5/2+1/2-√2/2
=2√3-√5/2-√2/2+3+1/2
=2√3-√5/2-√2/2+7/2