Last updated at Dec. 16, 2024 by Teachoo
Product Identities (Product to Sum Identities)
Product to sum identities are
2 cosx cosy = cos (x + y) + cos(x - y)
-2 sinx siny = cos (x + y) - cos(x - y)
2 sinx cosy = sin (x + y) + sin(x - y)
2 cosx siny = sin (x + y) - sin(x - y)
Product Identities (Product to Sum Identities) Product to sum identities are 2 cosx cosy = cos (x + y) + cos(x - y) -2 sinx siny = cos (x + y) - cos(x - y) 2 sinx cosy = sin (x + y) + sin(x - y) 2 cosx siny = sin (x + y) - sin(x - y)
About the Author
Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo