\fSuppose positive integers A, B satisfy the following equation sin TT 12 2 VA- VB Find the value of A, B A = B =Find value of cos 20 + 5 + sin 20Find O in the following figure (express your answer in radian). 3 5 TTLet u = (1, 0, 1), v = (0, 1, 3). Find the area of the triangle spanned by the vectors u and V. Area = VA B ; A = B =