sin(-α-5π)cos(α-π/2)-tan(α-3π/2)*(2π-α)
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sin(-α-5π)cos(α-π/2)-tan(α-3π/2)*(2π-α)
sin(-α-5π)cos(α-π/2)-tan(α-3π/2)*(2π-α)
sin(-α-5π)cos(α-π/2)-tan(α-3π/2)*(2π-α)
(α-3π/2)*(2π-α)
这是连在一起的吗?
利用和差角公式化简 (2)sin(π/3+α)+sin(π/3-α)(2)sin(π/3+α)+sin(π/3-α)(3)cos(π/4+α)-cos(π/4-α)(4)cos(60°+α)+cos(60°-α)(5)sin(α-β)cosβ+cos(α-β)sinβ(6)cos(α+β)cosβ+sin(α+β)sinβ
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