Unit 20 Theory of Quadratic Equations| Exercise 20.3 Question 3 | new mathematics book | mathematics grade 10 Sindh board | Maths new book Karachi board | how to find root and coefficient | quadratic equation | find the sum of roots |how to find product of the roots |cube root of unity #eduworld360 #class_10 #sindh_board #new_maths_book #exercise_20.3 #quadratic_equation #sum_of_roots #product_of_roots #real_root #complex_root #imaginary_root #rational_root #cube_root_of_unity #karachi_board #new_book #unit_20 #omega #q3 #10thmaths