Archive for July 2016
Click to download the slide: MO_Practice21.ppsx
I personally think these are something fundamental one must master before they move on to Algebra.
Still confused about Solstices, Equinox, Aphelion, Perihelion?
Hope this picture helps:
In questions involve 3 groups (3 circles in the diagram), it sometimes takes time to understand why
Total = A+B+C – A∩B – B∩C – A∩C + A∩B∩C
Putting up this slides in hope it helps in visualize how we reach the above.
Posted July 18, 2016on:
This video is a bit too quiet, but very informative.