4 5 12 13 July 8, 2019 16 32 64 128 5 4 12 2x )= 13 3 4 5 triangle 5 12 13 3 4 5 and 5 12 13 Cos a 4 5 cos b 12 13 3 5 12 х 4 13 18 Sinα 4 5 sinβ 12 13 4 5 2x + 12 136 4 5 x 12 13 Sina 4 5 cosb =- 12 13 Cos 4 5 cos 12 13 If cosa 4 5 cosb 12 13 5 4 divided by 13 12 4 w 5 − 3 )= 12 13 3 4 5 and 5 12 13 triangles
