怎样求当趋向无穷时y=(x²+1)/(x²-1)½的极限?

怎样求当趋向无穷时y=(x²+1)/(x²-1)½的极限?
怎样求当趋向无穷时y=(x²+1)/(x²-1)½的极限?

怎样求当趋向无穷时y=(x²+1)/(x²-1)½的极限?
x→＋∞lim y=(x²+1)/(x²-1)½=x→＋∞limx=＋∞
是不是题抄错了?y=(x+1)/(x²-1)½
如果是：
x→＋∞lim y=(x+1)/(x²-1)½=x→＋∞lim [(x+1)/(x-1)]½ =1½ =1