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Sinussatsen, cosinussatsen och enhetscirkeln

Tio uppgifter om triangelsatserna och om vinklar i enhetscirkeln.

10 questions · Upper secondary · Mathematics

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  1. En triangel har sidorna a och b med vinkeln C mellan dem. Vilken formel ger arean?

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    • a · b · sin C
    • a · b · sin C / 2
    • a · b · cos C / 2
    • a · b · tan C / 2
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    a · b · sin C / 2

  2. Sinussatsen säger att a / sin A = b / sin B = c / ___.

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    sin C or sinC or sin(C)

  3. Vad säger cosinussatsen om sidan c, som står mitt emot vinkeln C?

    • c² = a² + b² + 2ab · cos C
    • c² = a² + b² − 2ab · sin C
    • c² = a² − b² − 2ab · cos C
    • c² = a² + b² − 2ab · cos C
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    c² = a² + b² − 2ab · cos C

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