limx趋向无穷【2x^2+3/3x+2】*sin1/x 答案是2/3呀,做错了

limx趋向无穷【2x^2+3/3x+2】*sin1/x 答案是2/3呀,做错了
limx趋向无穷【2x^2+3/3x+2】*sin1/x
答案是2/3呀,做错了

limx趋向无穷【2x^2+3/3x+2】*sin1/x 答案是2/3呀,做错了
limx趋向无穷 ,所以1/x趋近于0,故sin1/x=0,然后任何数乘以0都为零.综上,此题答案为0