Задача Задача №243577
А
А
AB = √(CA² + CB²) = √(75² + 40²) = √(5625 + 1600) = √(7225) = 85
sin(B) = CB / AB = 40 / 85 = 8/17
cos(B) = CA / AB = 75 / 85 = 15/17
AB = √(CA² + CB²) = √(75² + 40²) = √(5625 + 1600) = √(7225) = 85
sin(B) = CB / AB = 40 / 85 = 8/17
cos(B) = CA / AB = 75 / 85 = 15/17
