99 . 1. sin(a+b)-cosa*sinb/sin(a-b)+cosa*sinb 2.sin(a-b)+2cosa*sinb/2cosa*cosb-cos(a-b) 3.cos(a-b)-2sina*sinb/2sina*cosb-sin(a-b) 4.cos(a+b)+sina*sinb/cos(a-b)-sina*sinb

ivankirichko2    3   26.08.2019 22:40    1