已知x>4,化简丨x-3丨+丨4-x丨
问题描述:
已知x>4,化简丨x-3丨+丨4-x丨
答
=x-4-(4-x)
=x-4-4+x
=0
已知x>4,化简丨x-3丨+丨4-x丨
=x-4-(4-x)
=x-4-4+x
=0