関連ワード:  solution of trigonometric functions    solution of trigonometric functions class 11    solution of trigonometric functions class 12    general solution of trigonometric functions    principal solution of trigonometric functions    solution of inverse trigonometric functions    solution of inverse trigonometric functions class 12    ncert solutions of trigonometric functions class 11    ncert solutions of trigonometric functions    general solutions of trigonometric functions class 11