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Ib Michelsen

  • The Polar Triangle

    Activity

    Ib Michelsen

  • Sfæriske cosinusrelationer

    Activity

    Ib Michelsen

  • Koordinater på en kugle

    Activity

    Ib Michelsen

  • The dayly life of a Star

    Activity

    Ib Michelsen

  • Astronomy

    Book

    Ib Michelsen

  • The orbit of Mars: The last added by GeoGebra (??)

    Activity

    Ib Michelsen

  • The orbit of Mars: Found with regression of polar coordinates

    Activity

    Ib Michelsen

  • The orbit of Mars: From temporary circle to ellipse

    Activity

    Ib Michelsen

  • The orbit of Mars: A point on the orbit (L3)

    Activity

    Ib Michelsen

  • The orbit of Mars: Direction

    Activity

    Ib Michelsen

  • Triangles

    Activity

    Ib Michelsen

  • Similar triangles

    Activity

    Ib Michelsen

  • Calculations: Right-angled triangle

    Activity

    Ib Michelsen

  • Euklids 1. bog

    Activity

    Ib Michelsen

  • Weierstrass

    Activity

    Ib Michelsen

  • Pythagoras - bevist med transformation af katetens kvadrat

    Activity

    Ib Michelsen

  • Algebraisk bevis for Pythagoras sætning

    Activity

    Ib Michelsen

  • Pythagoras sætning (Bevis)

    Activity

    Ib Michelsen

  • 2 ligninger med 2 ubekendte

    Activity

    Ib Michelsen

  • Falske terninger / False dices

    Activity

    Ib Michelsen

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