Frac 1 4 c =- 3 July 8, 2019 16 32 64 128 Frac 1 4 c 3 9 $ frac 3 4 c - frac 1 4 c 3 7 ( 1 frac 1 4 + c 2 frac 3 4 ) Frac 1 4 Frac 1 3 Frac 3 4
