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Solutions for Mathematics: A Discrete Introduction | 3rd Edition | ISBN: 9780840049421 | Authors: Edward A. Scheinerman 9780840049421

Solution for problem 1 Chapter 2

The call sign for a radio station in the United States is a list of three or four

Mathematics: A Discrete Introduction | 3rd Edition


Problem 1

The call sign for a radio station in the United States is a list of three or four letters, such as WJHU or WJZ. The first letter must be a W or a K, and there is no restriction on the other letters. In how many ways can the call sign of a radio station be formed?

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[4AT It-7 /l#..-^L*'- 8r, ,l^nS*nssh 3/u/s Cu, 1enn4, (rLrtlr,oqlnQoC kzr,-: "; tt ii1 -Z r'oa{ 2 \--J"-"'\.-,&.'", E=Z ^ir"C tfr vn c*l o=f6a/d" S4/e Si u-Ex4L PoP w,il, wt.wv,z'tNaz'r *l SfJu,aro{e ' fir* b;S s Lr4J^ s",.^yL siu- bL-fo -/'1"1 r'J /\4a-ain"/ Uc,r-g,n of br.rr-'lor f7,

Chapter 2, Problem 1 is Solved

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The call sign for a radio station in the United States is a list of three or four