If a b c 7 8 9 find cosa cosb cosc July 8, 2019 16 32 64 128 If a / b / c = 7/8 / 9 find cos a / (cos b) / (cos c) In ∆abc if a = 7 b = 5 c = 8 then find cosa 8. if a / b / c = 7/8 / 9 find cos a / (cos b) / (cos c)
