Wan, M., Xiao, G., & Yang, S. (2025). Research on Solving Trigonometric Problems in College Entrance Examination— Take the National 1/2/3 Volumes from 2018 to 2022 as an Example. Journal of Educational Research and Policies, 7(10), 141–149. https://doi.org/10.53469/jerp.2025.07(10).27