已知sin(π-α)+sin(5π/2+α)=根号2/3(π/2

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已知sin(π-α)+sin(5π/2+α)=根号2/3(π/2已知sin(π-α)+sin(5π/2+α)=根号2/3(π/2已知sin(π-α)+sin(5π/2+α)=根号2/3(π/2sin(

已知sin(π-α)+sin(5π/2+α)=根号2/3(π/2
已知sin(π-α)+sin(5π/2+α)=根号2/3(π/2

已知sin(π-α)+sin(5π/2+α)=根号2/3(π/2
sin(π-α)+sin(5π/2+α)=√2/3
sinα+sin(π/2+α)=√2/3
sinα-cosα=√2/3