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Unformatted text preview: ( n r ) .] 3(d) By considering the numbers of subsets of diﬀerent sizes of a set of n elements, explain why (4pts) ± n ¶ + ± n 1 ¶ + ··· + ± n n ¶ = 2 n 4. Work out the two values of (5pts) √ 1 + i [Use any reasonable method.] 5. (a) Write out the quotient and remainder obtained by dividing 525 by 231. (5pts) (b) Use Euclid’s algorithm to work out the greatest common divisor of 525 and 231. (5pts) 5(c) Express the greatest common divisor of 525 and 231 in the form (5pts) 525 a + 231 b where you must work out the integers a and b ....
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This note was uploaded on 01/27/2010 for the course MATH 4200 taught by Professor Staff during the Spring '08 term at LSU.
 Spring '08
 Staff
 Math, Algebra

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