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AAAA AAAB AAAC AAAD

**AABA**AABB AABC AABD AACA AACB AACC...3 Answers · Science & Mathematics · 09/10/2010

... BBAA BBBB AAAB ABAB ABBB

**AABA**ABBA BABB ABAA BAAB BBAB BAAA...2 Answers · Science & Mathematics · 26/06/2010

BAAA ABAA

**AABA**AAAB NAAA ANAA AANA AAAN There's your 8.1 Answers · Science & Mathematics · 04/03/2010

...10 choices for A, 9 choices for B = 90 ways

**AABA**--> 10 choices for A, 9 choices for B = 90 ...1 Answers · Science & Mathematics · 24/04/2009

...e = 5) eaaa eaab eaac eaba eabe eaca caaa caab caac caba cabe caca aaaa aaab aaac

**aaba**aabe aaca abaa abab abac abea acaa acab acac baaa baab baac baba babe baca beaa beab...2 Answers · Science & Mathematics · 09/03/2009

... aba⁻¹ = b⁻¹ by a from left, by a⁻¹ from right:

**aaba**⁻¹a⁻¹ = ab⁻¹a⁻¹, but the right side here ...3 Answers · Science & Mathematics · 22/02/2009

...product has a similar big expansion, only much longer: aaaa+aaab+aaac+aaad+

**aaba**+aabb+aabc+aabd+aaca+aacb+... If you think about it for a while, you could certainly...2 Answers · Science & Mathematics · 22/08/2008

...we can get 3^4 possible outcomes: AAAA AAAB AAAC

**AABA**AABB AABC AACA AACB AACC ....etc. ...3 Answers · Science & Mathematics · 03/07/2008

The items could sell in various orders:

**AABA**... BAAB ... BBAA ... etc. the one we are interested...1 Answers · Science & Mathematics · 11/06/2008

You don't need to ignore the wild cards, and you don't calculate it the way you were doing. Suppose there are 14 cards of each type (soldier, horse, cannon) and 2 wild cards. The only way to need five cards is to be unable to trade...

5 Answers · Science & Mathematics · 17/11/2007