Або купіть у застосунку – тут є трекер читання і ще бага-а-ато цікавок ;)
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Опис
Lets you practice at your own pace and reminds you of the important problem-solving techniques you need to remember. This guide includes: 3000 solved problems with solutions; an index to help you quickly locate the types of problems you want to solve; problems like those you'll find on your exams; and, techniques for choosing the correct approach.