函数y=lnx•sin2x(x>0)的导函数是______.
由积的导数公式得y′=1xsin2x+2lnxcos2x.
故答案为:y′=1xsin2x+2lnxcos2x.
Where are his _______books?
A.other
B.the other
C.others
D.the others
简述无摄运动中开普勒轨道参数。