Abduraxmanov Bobomurod G’ulombek o’g’li and Erkinov Farhodjon G’ulomjon o’g’li 2023. APPLICATIONS OF THE COMPLEX NUMBER IN TRIGONOMETRIC FORM IN SOME PRACTICAL PROBLEMS. EPRA International Journal of Multidisciplinary Research (IJMR). 9, 3 (Mar. 2023), 12–16.