Root(3 4 ^ 2) July 8, 2019 16 32 64 128 Root 3 4 * 21 * 21 Root 3 4 * 28 * 28 Square root 3 4 2 27 root 3 4 4 root 3 times 2 Root 3 4 a 2 formula Root 3 4 s 2 Root 3 4 r 2 Root 3 4 a 2 derivation Root 3 4 * 28 2 5 root 3 4 2 Root 2 + 3 4 root2 Root 3 cot 20 4 cos 20