比较大小1:cos((-47/10)π)与cos((-44/9)π) 2:tan((3/2)π-1)与tan((3/2)π+1)

问题描述:

比较大小1:cos((-47/10)π)与cos((-44/9)π) 2:tan((3/2)π-1)与tan((3/2)π+1)