已知抛物线y = ax2 +bx+c与x轴只有一个公共点.
(1）若抛物线过点P(0,1)，求a+b的最小值;
正确答案及解析
正确答案
解析
你可能感兴趣的试题
Dogs are the best pets of humans. They come in all sizes. Some dogs are as small as a football, and others are as tall as a desk. Dogs’ fur (毛) is different, too. It can be long and soft, or smooth and hard. People don’t mind the kind of fur, because all dogs are good to hug.
- 查看答案
请在字典中查一下这个词。
- 查看答案
我喜欢甜食， 你知道的。
- 查看答案
去年， 彼得在旅途中和许多人交了朋友。
- 查看答案