问题
填空题
空间A(1,2,3),B(5,4,7)两点间的距离是______.
答案
∵A(1,2,3),B(5,4,7),
∴|AB|=
=(5-1)2+(4-2)2+(7-3)2
=636
故答案为:6
空间A(1,2,3),B(5,4,7)两点间的距离是______.
∵A(1,2,3),B(5,4,7),
∴|AB|=
=(5-1)2+(4-2)2+(7-3)2
=636
故答案为:6