Question

derive values of trigonometric ratios for 30° and 60°​

Answer 1

Answer:

Take a point P on →OY and draw PA perpendicular to →OX Then, ∠OPA = 60°. Now, produce PA to B such that PA = MB and join OB. Therefore, ∠POB = 30° + 30° = 60°; which shows that each angel of triangle OPQ is 60° . Hence ∆OPQ is equilateral.