Mathematics

1st -

6thgrade

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wzory redukcyjne i tożsamości trygonometryczne

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22 questions

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  • 1. Multiple Choice
    30 seconds
    1 pt

    Wskaż równość prawdziwą

    sin(90°+α)=cosα\sin\left(90\degree+\alpha\right)=\cos\alpha

    sin(90°+α)=cosα\sin\left(90\degree+\alpha\right)=-\cos\alpha

    sin(90°+α)=sinα\sin\left(90\degree+\alpha\right)=\sin\alpha

    sin(90°+α)=sinα\sin\left(90\degree+\alpha\right)=-\sin\alpha

  • 2. Multiple Choice
    30 seconds
    1 pt

    Wskaż równość prawdziwą

    sin(180°+α)=cosα\sin\left(180\degree+\alpha\right)=\cos\alpha

    sin(180°+α)=cosα\sin\left(180\degree+\alpha\right)=-\cos\alpha

    sin(180°+α)=sinα\sin\left(180\degree+\alpha\right)=\sin\alpha

    sin(180°+α)=sinα\sin\left(180\degree+\alpha\right)=-\sin\alpha

  • 3. Multiple Choice
    30 seconds
    1 pt

    Wskaż równość prawdziwą

    sin(180°α)=cosα\sin\left(180\degree-\alpha\right)=\cos\alpha

    sin(180°α)=cosα\sin\left(180\degree-\alpha\right)=-\cos\alpha

    sin(180°α)=sinα\sin\left(180\degree-\alpha\right)=\sin\alpha

    sin(180°α)=sinα\sin\left(180\degree-\alpha\right)=-\sin\alpha

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