α∈(0,π),且2sin(π/3-α)+sinα=3/2,求α
来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/24 10:58:10
α∈(0,π),且2sin(π/3-α)+sinα=3/2,求αα∈(0,π),且2sin(π/3-α)+sinα=3/2,求αα∈(0,π),且2sin(π/3-α)+sinα=3/2,求α2sin
α∈(0,π),且2sin(π/3-α)+sinα=3/2,求α
α∈(0,π),且2sin(π/3-α)+sinα=3/2,求α
α∈(0,π),且2sin(π/3-α)+sinα=3/2,求α
2sin(π/3-α)+sinα=3/2
sin(π/3-α)+1/2 sin(α) = 3/4
sin(π/3)cos(a) - 1/2sin(a)+1/2sin(a) = 3/4; 展开
sin(π/3)cos(a) = 3/4;
接下来不用我说了
α∈(0,π),且2sin(π/3-α)+sinα=3/2,求α
设α,β,γ∈(0,π/2)且(sinα)^2+(sinβ)^2+(sinγ)^2=1求函数y=(sinα)^3/sinβ+(sinβ)^3/sinγ+(sinγ)^3/sinα 的最小值.
已知sin(2α-β)=3/5,sinβ=-12/13,且α∈(π/2,π),β∈(-π/2,0)求sinα
已知α∈(0,π|2),2tanα+3sinβ=7,且tanα-6sinβ=1,求sinα的值
已知α,β∈(0,π/2),且2tanα+3sinβ=7,tanα-6sinβ=1,则sinα=
已知sinα=1/3,且2π
已知sinα=3/5且π/2
已知β∈[-π/6,π/4),且3(sinα)^2-2(sinβ)^2=2sinα,求(sinβ)^2-1/2sinα的最小值
设α,β,γ∈(0,π/2),且sinβ+sinγ=sinα,cosα+cosγ=cosβ,则β-α=
若(4sinα-2cosα)/(5cosα+3sinα)=10,且α∈(-π/2,0)则cosα值为
已知α,β∈(0,π/2),且3sinα=2sinβ,3cosα+2cosβ=3,求α/2+β
已知角α,β∈(0,π/2),且tan(α+β)=-3,sinβ=2sin(2α+β),则α=?
已知α∈(0,π/2),且2sin²α-sinαcosα-3cos²α=0,求[sin(α+π/4)]/[sin2α+cos2α+1]的值.
已知α∈(0,π/2),且2sin²α-sinαcosα-3cos²α.求sin(α+π/4)/sin2α+cos2α+1
已知α∈(0,π/2),且2sinα-sinαcosα-3cosα=0.求[sin(α+π/4)]/[sin2α+cos2α+1]的值
已知α∈﹙0,π/2),且2Sinα-SinαCosα-3Cosα=0.求[Sin(α+π/4)]/(Sin2α+Cos2α+1)的值
已知α ,β∈(π /2,π)且cosα+sinβ>0,求证α+β
已知sin(2α-β)=3/5,sinβ=-12/13,且α∈(π/2,π),β∈(-π/2,0),则sinα=