根号3sinπ/12+cosπ/12
根号3×cosπ/12-sinπ/12=?
求sin π/12-(根号3)cos π/12
cosπ/12+(根号3)×sinπ/12的值
根号3 sinπ/12+cosπ/12的值是多少
sin(π/12)-根号3倍cos(π/12)的值
根号[1-2sin(3-π)cos(3-π)]化简
cosπ/6+根号3sinπ/6=?
sin派/12-根号3 cos派/12的值
x∈[π/4,π/3],f(x)=1/2sin(x-5π/12)cos(5π/12-x)+[(根号3)/2][sin(x
三角函数sin、cos、tan的π/几都可以化成分数·比如sinπ/3=根号3/2那其他的π/6、π/12呢
sin(x+π/3)+2sin(x-π/3)-根号3cos(2π/3-x)
已知cos(π\3-2)=1\3,则cosα+根号3sinα=