Analysis of Student Errors in Solving Trigonometric Function Limit

Every student can make mistakes with the same or different types of questions given. Various factors, both internal and external, cause students to make these mistakes. Several types of errors commonly made by students consist of conceptual errors, principal errors, and procedural errors. This research is qualitative research with a descriptive method, aimed at finding out the types of errors made by class. The research consisted of 3 students. Data collection techniques in this research are tests and interviews. After the students were given the test, 3 students were selected to be used as research subjects. Next, the researcher conducted interviews with 3 research subjects to find out the factors that caused students to make mistakes. The result show that the mistakes made by students are conceptual errors, principles errors and procedural errors. conceptual errors and procedural errors. The dominant conceptual errors made by research subjects are errors in determining how to solve the limits of trigonometric functions and errors in carrying out operations. Mistakes made by students in solving trigonometric function limit problems are caused by various factors. The dominant factor that causes students to make conceptual errors is that students do not understand the concept of limits, while the dominant factor that causes students to make procedural errors is errors in carrying out calculations