!!!!!!!!!!! 9sin120 * tg30 !!!!!!!!!!!!!

Question

!!!!!!!!!!! 9sin120 * tg30 !!!!!!!!!!!!!

Answer 1

9*sin120°*tg30° = 9*sin(90°+30°)*tg30° = 9*cos30°*(sin30°/cos30°) = 9*sin30° = 9*0.5 = 4.5