Глава 1. Связь между прямой и окружностью
Глава 2. Синус. Свойства функции и график
Глава 3. Косинус. Свойства функции и график
Глава 4. Тангенс. Свойства функции и график
Глава 5. Котангенс. Свойства функции и график
Глава 6. Секанс. Свойства функции и график
Глава 7. Косеканс. Свойства функции и график
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