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Unformatted text preview: are possible? A2. How many dierent words meaningful or not can be spelled using the letters of COLORADO? (Each letter is used exactly once. So, for example, all words are of length 8.) A3. What is the coecient of a 6 b 3 in the expansion of (7 a + 3 b + 2) 9 ? A4. What is the sum of all the coecients in the expansion of ( a + b + c + d + e ) 23 ?...
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This note was uploaded on 06/09/2008 for the course MTH 201 taught by Professor Ledoan during the Spring '07 term at Rochester.
- Spring '07