高数,求化简步骤 50
2个回答
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sin(π+α)=-sinα
cos(π+α)升岩=-cosα
sin(π-α)=sinα
cos(π-α)=-cosα
sin(2kπ+α)=sinα
cos(2kπ+α)=cosα
sin(2π-α)=-sinα
cos(2π-α)=cosα
sin(π/2+α)=cosα
cos(π/2+α)=-sinα
tan(π/2+α)=-cotα
裤裂 cot(π/2+α)=-tanα
sin(π/2-α)=cosα
cos(π/2-α)=sinα
tan(π/2-α)=cotα
cot(π/2-α)=tanα
sin(3π/2+α)=-胡笑闭cosα
cos(3π/2+α)=sinα
tan(3π/2+α)=-cotα
cot(3π/2+α)=-tanα
sin(3π/2-α)=-cosα
cos(3π/2-α)=-sinα
tan(3π/2-α)=cotα
cot(3π/2-α)=tanα
相信给你这些公式,你应该能算出那个答案,希望自己动手算一下哦,挨着带进去就行,还能锻炼自己记下公式。如果不想算,再追问。
cos(π+α)升岩=-cosα
sin(π-α)=sinα
cos(π-α)=-cosα
sin(2kπ+α)=sinα
cos(2kπ+α)=cosα
sin(2π-α)=-sinα
cos(2π-α)=cosα
sin(π/2+α)=cosα
cos(π/2+α)=-sinα
tan(π/2+α)=-cotα
裤裂 cot(π/2+α)=-tanα
sin(π/2-α)=cosα
cos(π/2-α)=sinα
tan(π/2-α)=cotα
cot(π/2-α)=tanα
sin(3π/2+α)=-胡笑闭cosα
cos(3π/2+α)=sinα
tan(3π/2+α)=-cotα
cot(3π/2+α)=-tanα
sin(3π/2-α)=-cosα
cos(3π/2-α)=-sinα
tan(3π/2-α)=cotα
cot(3π/2-α)=tanα
相信给你这些公式,你应该能算出那个答案,希望自己动手算一下哦,挨着带进去就行,还能锻炼自己记下公式。如果不想算,再追问。
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