In a triangle A B C , if A= ⁻¹ 2 and B= ⁻¹ 3 , then C is equal to

Step-by-step solution

aligned & A =2 and B =3 & array c ( A + B )= = A + B 1- A B = 2+3 1-6 = 5 -5 =-1 ~A + B + C = A + B = - C array & ( A + B )= ( - C )=- C & - C =-1 C = 4 & C = 4 . aligned