sharonc6432 sharonc6432 25-05-2023 Mathematics contestada Directions: Write each vector in trigonometric form. 18. b =(√19,-4) 20. k = 4√2i-2j 22. TU with 7(-3,-4) and U(3, 8) 19. r=16i+4j 21. CD with C(2, 10) and D(-3, 8)