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标题: OG DS 124 请教 [打印本页]

作者: laurazhao200    时间: 2007-12-15 19:04
标题: OG DS 124 请教

刚刚没有看清题意,顿悟了,请略过。。。。。。

原题:

In the rectangular coordinate system above, if OP<Q, is the area of region OPQ greater than 48?

(1) The coorinates of point P are (6, 8)

(2) The coorinates of point Q are (13, 0)

答案为A。为什么条件2不对呢?我觉得条件2可以确保OPQ<169/4,也就是小于48。

Thanks for ur attn!


[此贴子已经被作者于2007-12-15 20:22:33编辑过]





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