√2/4.
cos(-π/4)*sin(5/6π)=?
1个回答
相关问题
-
(cos4π\5)*(tan11π\6)*(sin5π\4)
-
sin(-4/3π)+cos5/6π=
-
为什么sin(23π/5) = sin(3π/5) ,cos(17π/4) = cos(π/4)?
-
求值:2cosπ/2-tanπ/4+3/4tan²π/6-sinπ/6+cos²π/6+sin3π/
-
4Sin π/2 -3Cos π/3 +6Sin3/2π - 6Cos π 计算
-
cosπ/5*cos2π/5 =(2sinπ/5*cosπ/5*cos2π/5)/(2sinπ/5) =(sin2π/5
-
求下列三角函数值 1.sin11π/6 2.sin3π/5 3.sin(-5/3π) 4.cos(-11/9π) 5co
-
Cos(π+α)+6cos(-α)/sin(2π-α)+4sin(二分之π-α)+4sin(二分之π+α)=5
-
sin-3π/4= cos11π/6= tan13π/4= sin7π/2= cos-3π/2= sin10π/3=
-
化简sin5π/4+sin(﹣π)+cos9π/4