Midpoint divides an interval in the ratio of 1:1, but what if the ratio is something else?
lesson notes:01 division of an interval
Midpoint divides an interval in the ratio of 1:1, but what if the ratio is something else?
lesson notes:01 division of an interval
What difference does it make if we arrange the objects in a circle instead of in a line?
lesson notes:05 arrangements in a circle
Looking at some past HSC questions, including some challenging HSC questions.
lesson notes:04 probability & counting techniques
If the order of arrangement does not matter, how does this affect the total number?
lesson notes:03 combinations
What happens to the number of arrangements when some of the objects are the same?
lesson notes:02 permutations II