8. 定义max (x, y )= the larger one of x, y .and min (x, y )=the smaller one of the two numbers. for example max (5 2)=5,and min (5 2)=2. question : min (10 w )=?
以下是引用Snazzy在2004-3-2 12:25:00的发言: 8. 定义max (x, y )= the larger one of x, y .and min (x, y )=the smaller one of the two numbers. for example max (5 2)=5,and min (5 2)=2. question : min (10 w )=? 1) w =max (20 z)for some z. 2) w= max(10 w).
my answer : d why is 1) right?
条件一当然是对的,这里w =max (20 z)for some z.不管Z为多大,W都是大于等于20,那么min (10 w )就很明显了,是10
以下是引用Snazzy在2004-3-4 12:31:00的发言: Thanks, Danna. I thought that X and Y are known. By the way, these questions are form JJ of last March. Is it necessary to change the answers when they are wrong?