【简答题】在平面直角坐标系x0y中,点P在曲线C:y=x 3 -x上,已知曲线C在点P处的切线斜率为2,则切线方程为______.
【判断题】中国佛教包容了北传佛教、南传佛教和藏传佛教三大体系。世界上完整的佛教在印度,发展在中国。 ( )
【简答题】《普通高等学校学生管理规定》共_章。第三章是___
【单选题】若曲线y=3x 2 +bx+c在x=x 0 处切线的倾斜角为45 0 ,则点(x 0 ,0)到曲线对称轴的距离是( )
【单选题】曲线y=x2+5x+4在点(-1,0)处切线的斜率为
【简答题】Write a short composition of 2504300 words on the topic given below. TOPIC: What Is the Most Urgent Issue Facing the World People in the 21st Century? State your reasons.
【单选题】曲线y=x 在点(0,0)处切线的斜率为( )
【单选题】What information is provided about distance communication?
A.
A cell phone is enough for most people.
B.
AT&T and Sprint offer free service in Egypt.
C.
A satellite phone doesn' t work in Mid-Egypt.
D.
Internet cafes are only available in big cities.
【单选题】已知曲线y= 1 3 x 3 + 1 2 x 2 +4x-7在点Q处的切线的倾斜角α满足sin 2 α= 16 17 ,则此切线的方程为( )
A.
4x-y+7=0或4x-y-6 5 6 =0
C.
4x-y-7=0或4x-y-6 5 6 =0
【判断题】中国佛教包容了北传佛教、南传佛教和藏传佛教三大体系。