猜你喜欢
- 1如图Rt△ABC中,∠C=90°,AD平分∠BAC,CD:BD=1:2,BC=2.7厘米,求点D到AB的距离
- 2如图,在梯形ABCD中,AD∥BC,AB=DC,点E、F、G分别在边AB,BC,CD上,且AE=GF=GC. 求证:四边形AEFG是平行四边形.
- 3把一铁块放入装满水的烧杯中,溢出水的质量为50g,将铁块放入装满酒精的烧杯中,则溢出酒精()g
- 4已知全集U={1,2,3,4,5},A={x|x平方+px+4=0} 求CuA!
- 5函数y=log以二为底x的对数+log以x为底(2x)的对数的值域是什么?
- 6they,re going to the train station(用the shopping centre改为选择疑问句)
- 7我克服了困难(作文)
- 82(x³-2y²)-(x-2y)-(x-3y²+2x³)其中x=﹣3,y=﹣2
- 9i often play basketball for two hours.i don;t feel tired.同义句
- 10已知函数f(x)=x²-2ax+a²-1的两个零点在(-2,4),求a的取值