This research is motivated by the large number of students' mistakes in solving trigonometry questions and aims to analyze common mistakes made by students in solving questions on trigonometry material. The type of research is descriptive research while the research method is based on literature analysis and teaching experience in the context of mathematics education. The data analysis techniques used are: data collection, data reduction, and drawing conclusions. We analyzed we analyze the results of students' work, various sources, including theses and research journals. Trigonometry is a branch of mathematics that studies the relationship between angles and sides in triangles. However, students often face difficulties in understanding and working on trigonometry problems, especially when working on questions in the form of descriptions. With a better understanding of these errors, educators are expected to be able to design more effective learning strategies to help students master trigonometry concepts well.
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