∵点(5-a,a-3)在第一、三象限角平分线上,且第一、三象限角平分线上的点的坐标特点为:点的横纵坐标相等,
∴5-a=a-3,即a=4.
故答案填:4.
若点(5-a,a-3)在第一、三象限角平分线上,则a=_.
若点(5-a,a-3)在第一、三象限角平分线上,则a=______.
数学人气:676 ℃时间:2020-06-15 09:16:04
优质解答
我来回答
类似推荐
猜你喜欢
- 1( )海洋,在( )里填上合适的动词.
- 2If a boy really likes you,he won't care how tired he is or how much homework he has or how late it is.He'll talk to you.
- 3daming don't collect stamps .哪里错了
- 4急 学位证英语翻译有偏差,经济学学士学位,学位证英文翻译成Degree of Bachelor of Management,问题大吗
- 5I'm afraid that with me earning no money
- 6what happens to his brother? 中的happen 为什么加不用过去式happened?
- 7表示列举的省略,用省略号造句
- 8人类活动对地表形态有益的影响是
- 9甲乙两支施工队同时从一条360米长的公路的两端往中间铺柏油.甲队每天铺40米,乙队的速度是甲队的1.25倍,几天后这条公路全部铺完?
- 10氢化钠是离子化合物还是共价化合物