设方程log4x-(1/4)^x=0,log1/4x-(1/4)^x=0的根分别为x1,x2,则
问题描述:
设方程log4x-(1/4)^x=0,log1/4x-(1/4)^x=0的根分别为x1,x2,则
答
可以画个图,log4x-(1/4)^x=0, 交点的横坐标x1大于1,
log1/4x-(1/4)^x=0,交点的横坐标<1,大于0