2009 Hunan Question 11 Fill-in-the-blank Differentiating 2009_省自主命题(湖南) 11.(5分)(2009•湖南)在(1+$\sqrt{x}$)^4的展开式中,x的系数为____. Answer key6 ☆ SaveCan't do it, show the explanation查看原卷 →