Implementation of Cramer's rule assisted by the Sarrus method in solving the problem of 2-loop unidirectional electrical circuits

Cramer's rule is used by combining matrix determinant methods applied in the presentation of solving Systems of Linear Equations (SLE). The purpose of this study was to determine the differences in student learning outcomes when using the Cramer Rule assisted by the Sarrus Method using the elimination substitution method on two-loop electrical circuit material. The research method used is the Posttest-Only Control Design experimental method. The results of this study are evidenced by the results of the hypothesis test which states that there is a significant difference between the learning outcomes of the control class and the learning outcomes of the experimental class. As well as the results of a very positive response from students to the implementation of Cramer's rule assisted by the Sarrus method. Thus, the conclusion of this study is that the implementation of Cramer's rule assisted by Sarrus method is proven to be effective as an alternative solution to solving two-loop electrical circuit problems.