Chapter 7.1, Problem 26, 28.

Page 1 <img data-url='document/chapter-71-problem-26-28.html?page=1' data-page='1' class='cut-thumb lazyload' alt='Page 1: Chapter 7.1, Problem 26, 28.' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader043.cupdf.com/reader043/viewer/2022032609/6238bf131a12b06b58276513/html5/thumbnails/1.jpg' width='140' height='200' /> Page 2 <img data-url='document/chapter-71-problem-26-28.html?page=2' data-page='2' class='cut-thumb lazyload' alt='Page 2: Chapter 7.1, Problem 26, 28.' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader043.cupdf.com/reader043/viewer/2022032609/6238bf131a12b06b58276513/html5/thumbnails/2.jpg' width='140' height='200' /> Page 3 <img data-url='document/chapter-71-problem-26-28.html?page=3' data-page='3' class='cut-thumb lazyload' alt='Page 3: Chapter 7.1, Problem 26, 28.' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader043.cupdf.com/reader043/viewer/2022032609/6238bf131a12b06b58276513/html5/thumbnails/3.jpg' width='140' height='200' /> Chapter 7.1, Problem 26, 28.

Chapter 7.2, Problem 3, 5.

Chapter 7.3, Problem 33.

Chapter 7.1, Problem 26, 28.

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