题目类型:
单选题
题目内容
limx→1sin(x-1)/(x2+x-2)()
正确答案
C
题目解析
limx→1[sin(x-1)]/[(x+2)(x-1)]=limx→11/(x+2)•limx→1sin(x-1)/(x-1) =1/3•1=1/3