Class 10th(math),ex=1.3,Q.(11,12,13), solution of system of equations with complex coefficients(NBF)

#class 10th #math #fbise #exercise 1.3 #question 11,12,13 #solution of system of equations with complex coefficients #applications of complex numbers #textbook of mathematics for grade 10 #national book foundation of Pakistan #federal textbook board #based on curriculum 2022-23