12 March 2020 Sergiu Funieru The formula for cos (a – b) [formula for the cosine of difference] 0 The formula for cos (a – b) [formula for the cosine of difference] Have you seen this? 0
![The formula for cos (a - b) [formula for the cosine of difference]](https://lunlun.com/wp-content/uploads/2020/03/The-formula-for-cos-a-b-formula-for-the-cosine-of-difference.png "The formula for cos (a - b) [formula for the cosine of difference]")