问题
填空题
若点(a,-1)在函数y=log
|
答案
将x=a,y=-1代入函数解析式得:-1=
,log a 1 3
解得:a=3,
则tan
=tan4π a
=tan(π+4π 3
)=tanπ 3
=π 3
.3
故答案为:3
若点(a,-1)在函数y=log
|
将x=a,y=-1代入函数解析式得:-1=
,log a 1 3
解得:a=3,
则tan
=tan4π a
=tan(π+4π 3
)=tanπ 3
=π 3
.3
故答案为:3