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Ib Michelsen
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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
