1. A.) k + m = 2 cos 1/2 ( α + β ) { sin 1/2 ( α + β ) + cos 1/2 ( α + β ) }B.) K = m tg 1/2 ( α + β )C.) k² + m² = 2 { 1 - cos ( α +β ) } = 4 cos² 1/2 ( α + β )bantuimt ya kakk plis , bantuint yaaa

all , 7 Years ago

Grade 12