Exploring the Relationship between Sine and Cosine Ratios

The video tutorial explores the relationship between sine and cosine, focusing on their graphs and complementary angles. It begins by explaining why cosine is named as such, then delves into the properties of sine and cosine graphs, highlighting their cyclic nature. The tutorial demonstrates how shifting these graphs reveals their relationship, showing that cosine is a cofunction of sine. It emphasizes that sine and cosine of complementary angles are equal, using examples to illustrate this concept. The lesson concludes with an application of these ideas to solve problems.

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