计算√3sin(-1200 度)/tan11π/3-cos585 度×tan(-37π/4)
求下列函数值:根号3sin(-1200°)cos35/3派-cos585°tan(-3派/4)
确定cos7/12π,sin(-465°),tan11/3π,sin3*cos4*tan5的符号
tan11π/*6cos(-25π/6)*sin(-23π/6)
计算:sin25π/6+cos25π/4+tan(-25π/4)+sin(-26π/3)
三角函数计算:若sinθ+cosθ=√2 则tan(θ+π/3)=?
计算sin(-α-5π)*cos(α-2分之π)-tan(α-2分之3π)*tan(2π-α)
计算sin(-π+π/3)+tan(3π/2-π/6)+sin15,
数学角度计算cos(π/3)-sin^2(π/4)+1/3*tan^2 (π/3)*sin(3π/2)+cosπ=?注:
tan{arcsin[cosπ/4]+arccos[sinπ/3]+arctan√3}
求三角函数的值 1.sin(-10π/3) 2.tan(-855度)
已知tanα=3,计算:sinαcosα
已知tanα=3,计算sinαcosα