作业帮cos²(40°+α)+cos²(30°-α)+cos²(50°+α)×tan(60°-α)急急帮帮忙cos²(40°+α)+cos²(30°-α)+cos²(50°+α)×tan(60°-α)
来源：学生作业帮助网 编辑：作业帮 时间：2024/11/29 22:56:46
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cos²(40°+α)+cos²(30°-α)+cos²(50°+α)×tan(60°-α)急急帮帮忙cos²(40°+α)+cos²(30°-α)+cos²(50°+α)×tan(60°-α)
cos²(40°+α)+cos²(30°-α)+cos²(50°+α)×tan(60°-α)
急急帮帮忙cos²(40°+α)+cos²(30°-α)+cos²(50°+α)×tan(60°-α)
cos²(40°+α)+cos²(30°-α)+cos²(50°+α)×tan(60°-α)急急帮帮忙cos²(40°+α)+cos²(30°-α)+cos²(50°+α)×tan(60°-α)
能再详细点吗?两个式子是连在一起的吗?