Year 11 HSC Math Extension Learn. Perms and combs FactorialsPermutationsCombinationsCircular seating arrangementsRearranging words Master. Permutations, combinations and polynomials module examMathematic Year 11 Ext Term 2 Exam # 1Mathematic Year 11 Ext Term 2 Exam # 2 Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Reddit (Opens in new window)