Dec 13, 2012
Don't expand a binomial all the way just to find one term. Just use the formula. Remember n, X, Y are always given, but you will always be figuring out "k" to be able to find a particular term.

Dec 13, 2012
Finding Binomial Expansion tough? If you use your brain's natural aptitude for symmetry you will find the expansion much easier to deal with.

Dec 11, 2012
Have you seen the question that asks you to create even #s out of a list of #s that includes zero. Most students do this question incorrectly.

Dec 10, 2012

How do you tell whether to use permutations or whether to use combinations when counting groups of objects? 




Nov 30, 2012
Worried about Final Exams or Diploma Exams in January?

Sep 17, 2012

Remember that atoms on the periodic table do not have a charge until they form compounds.