Answer Exercise 11 for a 4 4 chessboard. [Replace each nine in part (b) with sixteen.]
Question:
(a) In how many ways can we paint the cells of a 3 × 3 chessboard using red and blue paint? (The back of the chessboard is black.)
(b) In how many ways can we construct a 3 × 3 chessboard by joining (with paste) the edges of nine 1 × 1 plastic squares that are transparent and tinted red or blue? (There are nine squares of each color available.)
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Related Book For
Discrete and Combinatorial Mathematics An Applied Introduction
ISBN: 978-0201726343
5th edition
Authors: Ralph P. Grimaldi
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