Все публикации

0:05:29

Geometry problem #8 (parallelogram in quadrilateral)

0:04:03

Geometry problems #7 (Radius of circumcircle)

0:03:35

Geometry problem #6 (areas of triangles and parallelograms)

0:03:52

Geometry problem #5 (intersecting secants)

0:04:09

Geometry problem #4 (law of sines)

0:02:02

Geometry problem #3 (inscribed angle theorem)

0:01:38

Geometry problem #2 (inscribed angles)

0:00:48

The Terrace Difference

0:01:35

Geometry problem #1 (parallel lines and angles)

0:05:20

How to tell if a function is periodic - an example

0:02:56

Dividing complex numbers - the trick, and how to remember it!

0:05:31

Roots of complex numbers - the easy way!