If sin a 3 5 cos b 12 13 July 8, 2019 16 32 64 128 If sin a 3 5 and cosb =- 12 13 If sin a 3 5 and cosb =- 12 13 find tan ab If sin a 3 5 and cosb =- 12 13 find cos ab If cos a = 5/13 find sin a
