Unformatted text preview: x2 3 x2 +(8)(2x3)4(_~)4 + (8)(2x3)3(_~)5 + (8)(2x3)2(_~)6 4 x2 5 x2 6 x2 +(8)(2x3)(~f + (_~)8 7 x2 x2 256x 24 8(128x2I)~ + 28(64xI8)~ 56(32xI5)~ x 2 x4 x 6 +70(16x I2 )is56(8x 9 )xk + 28(4x 6 )xh 8(2x3) ~4 + ~6 X X 256x 24 _ 1024xI9 + 1792xI4 _ 1792x 9 + 1120x 4 _ 448 + 112 _ ~ + _I_ X x 6 xlI x I6 4. [BB] C3 2 ) (X 3 )9(_2y2)3 = 1760x 27 y6 5. (a) x 20 , 20x 19 , (2~)xI8y2 = 190x I8 y2 (c) [BB] The binomial coefficients appear in the order e~), eI0),. .. . The coefficient appearing in the seventh term is e60) , so the seventh term is (2~) x I4 y6 = 38, 760X14y6. Similarly, the fifteenth term is (~~)x6yI4 = 38,760X 6 yI4. (d) (~) = 77,520 6. (a) [BB] 17 terms (b) [BB] There is a middle term (since 16 is even), namely, C8 6 ) (2x)8( _y)8 = 12,870(256)x 8 y8 = 3,294,720x 8 y8....
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This note was uploaded on 11/08/2010 for the course MATH discrete m taught by Professor Any during the Summer '10 term at FSU.
 Summer '10
 any
 Graph Theory

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