Solution_to_Quiz_3 - STAT/MATH 418 Quiz 3 Solution Solution...

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Unformatted text preview: STAT/MATH 418 Quiz 3 Solution Solution to Quiz 3 (1) Use the multinomial theorem : ( x1 + x2 + ... + xr ) = n n n1 nr x 1 ... xr n n1 + ...+ nr = n 1 ,..., nr (a) 21 terms x y z Num. of terms 3! =3 2! 3! 3! =3 2! 3! 3! =3 2! 5 4 3 3 2 0 1 1 2 2 0 0 1 0 1 5 2 1 5 ( (b) x ) ( -2 y ) ( z ) = -60 2,1, 2 (c) 0 ...
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This note was uploaded on 06/28/2008 for the course MATH 418 taught by Professor Arnold,stevenfdong,yuexiao during the Summer '08 term at Pennsylvania State University, University Park.

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