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- 1在△abc中,已知abc分别为它的三边 化简√(a-b+c)² - |c-a-b
- 2作出函数y=-3(x-3)^2的图象关于x轴对称的图像,得到的图像对应的函数表达式为
- 3When the teacher entered the classroom,he found the students already ___.
- 4我最喜欢的一节数学课
- 5已知圆X^2+Y^2=4从圆上任一点P向X轴的垂线段为PP`,点M在PP`上且PM:MP`=1:3则M轨迹方程为
- 6已知关于x的方程式3分之4*x-m=5分之6*x-1,当m为某些正整数是,方程的解为正整数,试求正整数m的最小值%D%A
- 7机车启动的物理题
- 8we are sure that ( ) to do this face to face,he would find it difficult to express himself without losing his temper
- 9汽车启动时的速度和加速度
- 10有点不清楚