倒数相加
问题描述:
倒数相加
√(x-y)/2-2/√(x-y)
答
√(x-y)/2-2/√(x-y)
=(x-y)/vx-y-2/vx-y
=(x-y-2)/v(x-y)
=(x-y-2)vx-y/(x-y)